@prefix dbo: . @prefix dbr: . dbr:Betelgeuse dbo:wikiPageWikiLink dbr:Color_index . dbr:K_correction dbo:wikiPageWikiLink dbr:Color_index . dbr:NGC_4571 dbo:wikiPageWikiLink dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index . dbr:Ananke_group dbo:wikiPageWikiLink dbr:Color_index . dbr:HIP_12961 dbo:wikiPageWikiLink dbr:Color_index . dbr:Weak_gravitational_lensing dbo:wikiPageWikiLink dbr:Color_index . dbr:Delta2_Canis_Minoris dbo:wikiPageWikiLink dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index . dbr:G-type_main-sequence_star dbo:wikiPageWikiLink dbr:Color_index . @prefix ns2: . ns2:Borisov dbo:wikiPageWikiLink dbr:Color_index . dbr:Irregular_moon dbo:wikiPageWikiLink dbr:Color_index . dbr:IK_Pegasi dbo:wikiPageWikiLink dbr:Color_index . dbr:Epsilon_Reticuli dbo:wikiPageWikiLink dbr:Color_index . dbr:A-type_main-sequence_star dbo:wikiPageWikiLink dbr:Color_index . dbr:Effective_temperature dbo:wikiPageWikiLink dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index . @prefix foaf: . @prefix wikipedia-en: . wikipedia-en:Color_index foaf:primaryTopic dbr:Color_index . dbr:Star dbo:wikiPageWikiLink dbr:Color_index . dbr:Milky_Way dbo:wikiPageWikiLink dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index . dbr:R_Coronae_Borealis dbo:wikiPageWikiLink dbr:Color_index . dbr:Red_dwarf dbo:wikiPageWikiLink dbr:Color_index . dbr:V4199_Sagittarii dbo:wikiPageWikiLink dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index . dbr:UBV_photometric_system dbo:wikiPageWikiLink dbr:Color_index . dbr:K-type_main-sequence_star dbo:wikiPageWikiLink dbr:Color_index . dbr:Metallicity dbo:wikiPageWikiLink dbr:Color_index . dbr:Andromeda_Galaxy dbo:wikiPageWikiLink dbr:Color_index . dbr:Globular_cluster dbo:wikiPageWikiLink dbr:Color_index . dbr:N2K_Consortium dbo:wikiPageWikiLink dbr:Color_index . dbr:List_of_optics_equations dbo:wikiPageWikiLink dbr:Color_index . dbr:Himalia_group dbo:wikiPageWikiLink dbr:Color_index . dbr:Carme_group dbo:wikiPageWikiLink dbr:Color_index . dbr:Backyard_Worlds dbo:wikiPageWikiLink dbr:Color_index . dbr:Gyrochronology dbo:wikiPageWikiLink dbr:Color_index . dbr:NGC_1325 dbo:wikiPageWikiLink dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index . dbr:B-V_Colour dbo:wikiPageWikiLink dbr:Color_index ; dbo:wikiPageRedirects dbr:Color_index . dbr:Normal_color_index dbo:wikiPageWikiLink dbr:Color_index ; dbo:wikiPageRedirects dbr:Color_index . dbr:Color_Index dbo:wikiPageWikiLink dbr:Color_index ; dbo:wikiPageRedirects dbr:Color_index . dbr:B-v dbo:wikiPageWikiLink dbr:Color_index ; dbo:wikiPageRedirects dbr:Color_index . dbr:Intrinsic_color_index dbo:wikiPageWikiLink dbr:Color_index ; dbo:wikiPageRedirects dbr:Color_index . dbr:Glossary_of_astronomy dbo:wikiPageWikiLink dbr:Color_index . dbr:Asteroseismology dbo:wikiPageWikiLink dbr:Color_index . dbr:F-type_main-sequence_star dbo:wikiPageWikiLink dbr:Color_index . dbr:Delta_Scuti_variable dbo:wikiPageWikiLink dbr:Color_index . dbr:MT_Pegasi dbo:wikiPageWikiLink dbr:Color_index . dbr:HD_66428 dbo:wikiPageWikiLink dbr:Color_index . dbr:Mu1_Gruis dbo:wikiPageWikiLink dbr:Color_index . dbr:Colour_index dbo:wikiPageWikiLink dbr:Color_index ; dbo:wikiPageRedirects dbr:Color_index . dbr:Haumea_family dbo:wikiPageWikiLink dbr:Color_index . dbr:Asteroid_spectral_types dbo:wikiPageWikiLink dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index . dbr:B-type_main-sequence_star dbo:wikiPageWikiLink dbr:Color_index . dbr:InfiniteReality dbo:wikiPageWikiLink dbr:Color_index . dbr:B-V_color dbo:wikiPageWikiLink dbr:Color_index ; dbo:wikiPageRedirects dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index . dbr:Gallic_group dbo:wikiPageWikiLink dbr:Color_index . dbr:Arcturus dbo:wikiPageWikiLink dbr:Color_index . dbr:Main_sequence dbo:wikiPageWikiLink dbr:Color_index . dbr:Observational_astronomy dbo:wikiPageWikiLink dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index . dbr:Canopus dbo:wikiPageWikiLink dbr:Color_index . dbr:Star_tracker dbo:wikiPageWikiLink dbr:Color_index . dbr:Delta_Cephei dbo:wikiPageWikiLink dbr:Color_index . dbr:O-type_main-sequence_star dbo:wikiPageWikiLink dbr:Color_index . dbr:Rigel dbo:wikiPageWikiLink dbr:Color_index . dbr:Stellar_classification dbo:wikiPageWikiLink dbr:Color_index . dbr:Black_body dbo:wikiPageWikiLink dbr:Color_index . dbr:HR_5171 dbo:wikiPageWikiLink dbr:Color_index . dbr:Chromaticity dbo:wikiPageWikiLink dbr:Color_index . @prefix rdf: . @prefix yago: . dbr:Color_index rdf:type yago:Object100002684 , yago:Whole100003553 , yago:Abstraction100002137 , yago:System104377057 , yago:WikicatClassificationSystems , yago:Instrumentality103575240 , yago:PsychologicalFeature100023100 , yago:WikicatPhotometricSystems , yago:Structure105726345 , yago:Artifact100021939 , yago:Cognition100023271 , yago:Arrangement105726596 , yago:ClassificationSystem105727220 , yago:PhysicalEntity100001930 . @prefix rdfs: . dbr:Color_index rdfs:label "Indice di colore"@it , "Kleurindex"@nl , "Barevn\u00FD index"@cs , "Color index"@en , "\u0645\u0624\u0634\u0631 \u0627\u0644\u0644\u0648\u0646"@ar , "Wska\u017Anik barwy"@pl , "\u041F\u043E\u043A\u0430\u0437\u043D\u0438\u043A \u043A\u043E\u043B\u044C\u043E\u0440\u0443"@uk , "\u00CDndex de color"@ca , "Indeks warna"@in , "\u0394\u03B5\u03AF\u03BA\u03C4\u03B7\u03C2 \u03C7\u03C1\u03CE\u03BC\u03B1\u03C4\u03BF\u03C2"@el , "\u8272\u6307\u6570 (\u5929\u6587)"@ja , "F\u00E4rgindex"@sv , "\u8272\u6307\u6578"@zh , "\u041F\u043E\u043A\u0430\u0437\u0430\u0442\u0435\u043B\u044C \u0446\u0432\u0435\u0442\u0430"@ru , "\uC0C9\uC9C0\uC218"@ko , "Farbindex"@de , "Indice de couleur"@fr ; rdfs:comment "\u03A3\u03C4\u03B7\u03BD \u03B1\u03C3\u03C4\u03C1\u03BF\u03BD\u03BF\u03BC\u03AF\u03B1 \u03BF \u03B4\u03B5\u03AF\u03BA\u03C4\u03B7\u03C2 \u03C7\u03C1\u03CE\u03BC\u03B1\u03C4\u03BF\u03C2 (color index) \u03B5\u03AF\u03BD\u03B1\u03B9 \u03BC\u03B9\u03B1 \u03B1\u03C0\u03BB\u03AE \u03B1\u03C1\u03B9\u03B8\u03BC\u03B7\u03C4\u03B9\u03BA\u03AE \u03AD\u03BA\u03C6\u03C1\u03B1\u03C3\u03B7 \u03C4\u03BF\u03C5 \u03C7\u03C1\u03CE\u03BC\u03B1\u03C4\u03BF\u03C2 \u03B5\u03BD\u03CC\u03C2 \u03BF\u03C5\u03C1\u03AC\u03BD\u03B9\u03BF\u03C5 \u03C3\u03CE\u03BC\u03B1\u03C4\u03BF\u03C2. \u03A7\u03C1\u03B7\u03C3\u03B9\u03BC\u03BF\u03C0\u03BF\u03B9\u03B5\u03AF\u03C4\u03B1\u03B9 \u03B9\u03B4\u03B9\u03B1\u03AF\u03C4\u03B5\u03C1\u03B1 \u03C3\u03C4\u03B7\u03BD \u03C0\u03B5\u03C1\u03AF\u03C0\u03C4\u03C9\u03C3\u03B7 \u03C4\u03C9\u03BD \u03B1\u03C3\u03C4\u03AD\u03C1\u03C9\u03BD, \u03B3\u03B9\u03B1 \u03C4\u03BF\u03C5\u03C2 \u03BF\u03C0\u03BF\u03AF\u03BF\u03C5\u03C2 \u03C5\u03C0\u03AC\u03C1\u03C7\u03B5\u03B9 \u03C0\u03C1\u03B1\u03BA\u03C4\u03B9\u03BA\u03AC \u03BC\u03BF\u03BD\u03BF\u03C3\u03AE\u03BC\u03B1\u03BD\u03C4\u03B7 \u03B1\u03BD\u03C4\u03B9\u03C3\u03C4\u03BF\u03B9\u03C7\u03AF\u03B1 \u03C4\u03BF\u03C5 \u03BC\u03B5 \u03C4\u03B7\u03BD \u03B5\u03C0\u03B9\u03C6\u03B1\u03BD\u03B5\u03B9\u03B1\u03BA\u03AE \u03B8\u03B5\u03C1\u03BC\u03BF\u03BA\u03C1\u03B1\u03C3\u03AF\u03B1 \u03C4\u03BF\u03C5\u03C2 \u03BA\u03B1\u03B9 \u03C4\u03BF\u03BD \u03C6\u03B1\u03C3\u03BC\u03B1\u03C4\u03B9\u03BA\u03CC \u03C4\u03BF\u03C5\u03C2 \u03C4\u03CD\u03C0\u03BF. \u03A0\u03B9\u03BF \u03C3\u03C5\u03B3\u03BA\u03B5\u03BA\u03C1\u03B9\u03BC\u03AD\u03BD\u03B1, \u03CC\u03C3\u03BF \u03BC\u03B9\u03BA\u03C1\u03CC\u03C4\u03B5\u03C1\u03BF\u03C2 \u03B1\u03C1\u03B9\u03B8\u03BC\u03CC\u03C2 \u03B5\u03AF\u03BD\u03B1\u03B9 \u03BF \u03B4\u03B5\u03AF\u03BA\u03C4\u03B7\u03C2 \u03C7\u03C1\u03CE\u03BC\u03B1\u03C4\u03BF\u03C2, \u03C4\u03CC\u03C3\u03BF \u03C0\u03B9\u03BF \u03B3\u03B1\u03BB\u03AC\u03B6\u03B9\u03BF \u03BA\u03B1\u03B9 \u03B8\u03B5\u03C1\u03BC\u03CC\u03C4\u03B5\u03C1\u03BF \u03B5\u03AF\u03BD\u03B1\u03B9 \u03C4\u03BF \u03BF\u03C5\u03C1\u03AC\u03BD\u03B9\u03BF \u03C3\u03CE\u03BC\u03B1. \u0395\u03BD\u03CE \u03CC\u03C3\u03BF \u03BC\u03B5\u03B3\u03B1\u03BB\u03CD\u03C4\u03B5\u03C1\u03BF\u03C2 \u03B5\u03AF\u03BD\u03B1\u03B9 \u03BF \u03B4\u03B5\u03AF\u03BA\u03C4\u03B7\u03C2 \u03C7\u03C1\u03CE\u03BC\u03B1\u03C4\u03BF\u03C2, \u03C4\u03CC\u03C3\u03BF \u03C0\u03B9\u03BF \u03BA\u03CC\u03BA\u03BA\u03B9\u03BD\u03BF \u03BA\u03B1\u03B9 \u03C8\u03C5\u03C7\u03C1\u03CC\u03C4\u03B5\u03C1\u03BF \u03B5\u03AF\u03BD\u03B1\u03B9 \u03C4\u03BF \u03C3\u03CE\u03BC\u03B1. \u0391\u03C5\u03C4\u03CC \u03B5\u03AF\u03BD\u03B1\u03B9 \u03B1\u03C0\u03BF\u03C4\u03AD\u03BB\u03B5\u03C3\u03BC\u03B1 \u03C4\u03B7\u03C2 \u03B9\u03B4\u03B9\u03BF\u03BC\u03BF\u03C1\u03C6\u03AF\u03B1\u03C2 \u03C4\u03B7\u03C2 \u03BA\u03BB\u03AF\u03BC\u03B1\u03BA\u03B1\u03C2 \u03C4\u03C9\u03BD \u03B1\u03C3\u03C4\u03C1\u03BF\u03BD\u03BF\u03BC\u03B9\u03BA\u03CE\u03BD \u03BC\u03B5\u03B3\u03B5\u03B8\u03CE\u03BD, \u03C3\u03C4\u03B7\u03BD \u03BF\u03C0\u03BF\u03AF\u03B1 \u03C4\u03B1 \u03C6\u03C9\u03C4\u03B5\u03B9\u03BD\u03CC\u03C4\u03B5\u03C1\u03B1 \u03C3\u03CE\u03BC\u03B1\u03C4\u03B1 \u03AD\u03C7\u03BF\u03C5\u03BD \u03BC\u03B9\u03BA\u03C1\u03CC\u03C4\u03B5\u03C1\u03B1 (\u03AE \u00AB\u03C0\u03B9\u03BF \u03B1\u03C1\u03BD\u03B7\u03C4\u03B9\u03BA\u03AC\u00BB) \u03BC\u03B5\u03B3\u03AD\u03B8\u03B7 \u03B1\u03C0\u03CC \u03C4\u03B1 \u03B1\u03BC\u03C5\u03B4\u03C1\u03CC\u03C4\u03B5\u03C1\u03B1. \u0393\u03B9\u03B1 \u03C3\u03CD\u03B3\u03BA\u03C1\u03B9\u03C3\u03B7, \u03BF \u0389\u03BB\u03B9\u03BF\u03C2, \u03C9\u03C2 \u00AB\u03BA\u03AF\u03C4\u03C1\u03B9\u03BD\u03BF\u03C2\u00BB \u03B1\u03C3\u03C4\u03AD\u03C1\u03B1\u03C2, \u03AD\u03C7\u03B5\u03B9 \u03B4\u03B5\u03AF\u03BA\u03C4\u03B7 \u03C7\u03C1\u03CE\u03BC\u03B1\u03C4\u03BF\u03C2 B\u2212V = 0,656, \u03B5\u03BD\u03CE \u03BF \u03BA\u03C5\u03B1\u03BD\u03CC\u03C2 \u03B3\u03AF\u03B3\u03B1\u03BD\u03C4\u03B1\u03C2 \u03A1\u03AF\u03B3\u03BA\u03B5\u03BB \u03AD\u03C7\u03B5\u03B9 B\u2212"@el , "In der Astronomie ist der Farbindex (FI) eine urspr\u00FCnglich von Karl Schwarzschild (1873\u20131916) eingef\u00FChrte Ma\u00DFzahl f\u00FCr die Farbe von Sternen."@de , "( \uAD11\uC5C5\uC5D0\uC11C \uC554\uC11D\uC5D0 \uB4E4\uC5B4 \uC788\uB294 \uC720\uC0C9 \uAD11\uBB3C\uC758 \uC591\uC744 \uBD80\uD53C \uBC31\uBD84\uC728\uB85C \uB098\uD0C0\uB0B8 \uC218\uC5D0 \uB300\uD574\uC11C\uB294 \uBB38\uC11C\uB97C \uCC38\uACE0\uD558\uC2ED\uC2DC\uC624.) \uCC9C\uBB38\uD559\uC5D0\uC11C \uC0C9\uC9C0\uC218\uB780 \uBCC4\uC758 \uD45C\uBA74\uC628\uB3C4\uB97C \uC54C \uC218 \uC788\uAC8C \uD574\uC8FC\uB294 \uCC9C\uCCB4\uC758 \uC0C9\uC744 \uCE21\uC815\uD558\uB294 \uB2E8\uC21C\uD55C \uC218\uC801 \uD45C\uD604\uC774\uB2E4.\uC0C9\uC9C0\uC218\uB97C \uCE21\uC815\uD558\uAE30 \uC704\uD574\uC11C\uB294 \uC5F0\uC18D\uC73C\uB85C U\uC640 B\uB098 B\uC640 V\uC640 \uAC19\uC774, \uB450 \uAC1C\uC758 \uB2E4\uB978 \uD544\uD130\uB97C \uD1B5\uD574 \uCC9C\uCCB4\uC758 \uB4F1\uAE09\uC744 \uAD00\uCE21\uD55C\uB2E4. (U\uB294 \uC790\uC678\uC120\uC5D0 \uBBFC\uAC10\uD558\uACE0, B\uB294 \uCCAD\uC0C9 \uBE5B\uC5D0 \uBBFC\uAC10\uD558\uACE0, V\uB294 \uAC00\uC2DC\uAD11\uC120(\uB179\uC0C9-\uB178\uB780\uC0C9)\uC5D0 \uBBFC\uAC10\uD558\uB2E4.) \uD328\uC2A4\uBC34\uB4DC(\uD1B5\uACFC\uB300\uC5ED: \uD544\uD130\uB97C \uC9C0\uB098\uB294 \uC2E0\uD638\uAC00 \uAC70\uC758 \uAC10\uC1E0\uD558\uC9C0 \uC54A\uB294 \uC8FC\uD30C\uC218\uC758 \uBC94\uC704)\uB098 \uD544\uD130\uC758 \uD55C \uC138\uD2B8\uB97C \uAD11\uB3C4 \uCE21\uC815\uACC4\uB77C\uACE0\uB3C4 \uBD80\uB978\uB2E4.\uAC01\uAC01 \uB4F1\uAE09\uC758 \uCC28\uC774\uB294 U-B \uB610\uB294 B-V \uC0C9\uC9C0\uC218\uC778 \uD544\uD130\uB4E4\uB85C \uC54C\uC544\uB0B8\uB2E4. \uB9E4\uC6B0 \uC791\uC740 \uC0C9\uC9C0\uC218\uB294 \uB9E4\uC6B0 \uD478\uB978(\uB610\uB294 \uB9E4\uC6B0 \uB728\uAC70\uC6B4) \uCC9C\uCCB4\uC774\uB2E4.\uBC18\uB300\uB85C \uC880 \uD070 \uC0C9\uC9C0\uC218\uB294 \uB354 \uBD89\uC740(\uB610\uB294 \uB354 \uCC28\uAC00\uC6B4) \uCC9C\uCCB4\uC774\uB2E4. \uC774\uAC83\uC740 \uBC1D\uC740 \uCC9C\uCCB4\uAC00 \uADF8\uBCF4\uB2E4 \uC5B4\uB450\uC6B4 \uCC9C\uCCB4\uBCF4\uB2E4 \uB354 \uC791\uC740 \uB4F1\uAE09\uC744 \uAC16\uB294 \uC218\uC758 \uB4F1\uAE09 \uCC99\uB3C4 \uB54C\uBB38\uC774\uB2E4.\uBE44\uAD50\uD558\uC790\uBA74, \uD669\uC0C9\uC758 \uD0DC\uC591\uC740 0.656\u00B10.005\uC758 B-V\uC9C0\uC218\uB97C \uAC16\uACE0, \uD478\uB974\uC2A4\uB984\uD55C \uB9AC\uAC94\uC740 -0.03 B-V\uC9C0\uC218\uB97C \uAC16\uB294\uB2E4.(\uB9AC\uAC94\uC758 B-\uB4F1\uAE09\uC740 0.09\uC774\uACE0 V-\uB4F1\uAE09\uC740 0.12\uB85C B-V = -0.03\uC774\uB2E4.)"@ko , "In de astronomie is een kleurindex het verschil tussen twee kleurmagnitudes. Dit zijn getallen die op een logaritmische schaal de helderheid van een ster bij bepaalde gestandaardiseerde golflengtes aangeven. Omdat een dergelijk verschil eenduidig afhangt van de effectieve temperatuur van de ster is de kleurindex dus een maat voor die temperatuur. Het voordeel is dat een kleurindex in eerste benadering onafhankelijk is van de afstand van de ster. De afstand van een ster is doorgaans heel moeilijk te meten, tenzij voor sterren die in de directe omgeving van de zon staan waar de parallaxmethode kan gebruikt worden."@nl , "Barevn\u00FD index je v astronomii (CI) rozd\u00EDl magnitud hv\u011Bzdy ve vybran\u00FDch spektr\u00E1ln\u00EDch intervalech. Byl zaveden n\u011Bmeck\u00FDm fyzikem Karlem Schwarzschildem. P\u016Fvodn\u011B byl zaveden jako rozd\u00EDl mezi fotografickou a vizu\u00E1ln\u00ED hv\u011Bzdnou velikost\u00ED.V\u0161eobecn\u011B je to rozd\u00EDl mezi hv\u011Bzdn\u00FDmi velikostmi ve dvou r\u016Fzn\u00FDch spektr\u00E1ln\u00EDch oblastech, mezi hv\u011Bzdnou velikost\u00ED v oblasti krat\u0161\u00EDch vln a hv\u011Bzdnou velikost\u00ED v oblasti del\u0161\u00EDch vln. V syst\u00E9mu UBV je definovan\u00FD barevn\u00FD index (index U \u2013 B, index B \u2013 V) p\u0159i hv\u011Bzd\u011B spektr\u00E1ln\u00EDho typu A0 takto: B \u2013 V = U \u2013 B = 0; p\u0159i teplej\u0161\u00EDch hv\u011Bzd\u00E1ch je z\u00E1porn\u00FD, p\u0159i chladn\u011Bj\u0161\u00EDch kladn\u00FD."@cs , "In astronomia, si dice indice di colore, o semplicemente colore, la differenza tra le magnitudini in due diversi filtri (o bande) di una stella."@it , "\u041F\u043E\u043A\u0430\u0437\u043D\u0438\u0301\u043A \u043A\u043E\u0301\u043B\u044C\u043E\u0440\u0443 \u0430\u0431\u043E \u043A\u043E\u043B\u043E\u0440-\u0456\u043D\u0434\u0435\u043A\u0441 \u2014 \u0440\u0456\u0437\u043D\u0438\u0446\u044F \u043C\u0456\u0436 \u0437\u043E\u0440\u044F\u043D\u0438\u043C\u0438 \u0432\u0435\u043B\u0438\u0447\u0438\u043D\u0430\u043C\u0438 \u0437\u043E\u0440\u0456 \u0443 \u0434\u0432\u043E\u0445 \u0440\u0456\u0437\u043D\u0438\u0445 \u0441\u043F\u0435\u043A\u0442\u0440\u0430\u043B\u044C\u043D\u0438\u0445 \u0441\u043C\u0443\u0433\u0430\u0445, \u043F\u0435\u0440\u0448\u0430 \u0437 \u044F\u043A\u0438\u0445 \u043C\u0430\u0454 \u043C\u0435\u043D\u0448\u0443 \u0434\u043E\u0432\u0436\u0438\u043D\u0443 \u0445\u0432\u0438\u043B\u0456. \u041F\u043E\u043A\u0430\u0437\u043D\u0438\u043A \u0445\u0430\u0440\u0430\u043A\u0442\u0435\u0440\u0438\u0437\u0443\u0454 \u0442\u0435\u043C\u043F\u0435\u0440\u0430\u0442\u0443\u0440\u0443 \u0437\u043E\u0440\u0456, \u0442\u043E\u0431\u0442\u043E, \u0457\u0457 \u043A\u043E\u043B\u0456\u0440. \u0417\u0456 \u0437\u0431\u0456\u043B\u044C\u0448\u0435\u043D\u043D\u044F\u043C \u043F\u043E\u043A\u0430\u0437\u043D\u0438\u043A\u0430 \u043A\u043E\u043B\u044C\u043E\u0440\u0443 \u0442\u0435\u043C\u043F\u0435\u0440\u0430\u0442\u0443\u0440\u0430 \u0437\u043C\u0435\u043D\u0448\u0443\u0454\u0442\u044C\u0441\u044F."@uk , "In astronomy, the color index is a simple numerical expression that determines the color of an object, which in the case of a star gives its temperature. The lower the color index, the more blue (or hotter) the object is. Conversely, the larger the color index, the more red (or cooler) the object is. This is a consequence of the logarithmic magnitude scale, in which brighter objects have smaller (more negative) magnitudes than dimmer ones. For comparison, the whitish Sun has a B\u2212V index of 0.656 \u00B1 0.005, whereas the bluish Rigel has a B\u2212V of \u22120.03 (its B magnitude is 0.09 and its V magnitude is 0.12, B\u2212V = \u22120.03). Traditionally, the color index uses Vega as a zero point."@en , "\u8272\u6307\u6578\u662F\u5929\u6587\u5B78\u4E2D\u5229\u7528\u984F\u8272\u4F86\u986F\u793A\u6046\u661F\u8868\u9762\u6EAB\u5EA6\u7684\u4E00\u500B\u7D14\u91CF\u3002\u8981\u6E2C\u91CF\u51FA\u9019\u500B\u6307\u6578\uFF0C\u89C0\u6E2C\u8005\u9700\u8981\u4F7F\u7528\u5169\u7A2E\u4E0D\u540C\u7684\u6FFE\u93E1\uFF0CU\u548CB\u6216B\u548CV\uFF0C\u4F9D\u5E8F\u6E2C\u51FA\u76EE\u6A19\u7269\u7684\u5149\u5EA6\u3002\u9019\u662F\u4E00\u5957\u5F88\u5E38\u7528\u7684\u901A\u5E36\u6216\u6FFE\u93E1\u6E2C\u5149\u7CFB\u7D71\uFF0CU\u662F\u5C0D\u7D2B\u5916\u7DDA\u9748\u654F\u7684\u6FFE\u93E1\uFF0CB\u662F\u5C0D\u85CD\u5149\u9748\u654F\u7684\u6FFE\u93E1\uFF0CV\u662F\u5C0D\u9EC3\u7DA0\u8272\u7684\u53EF\u898B\u5149\u9748\u654F\u7684\u6FFE\u93E1\uFF08\u53C3\u8003UBV\u7CFB\u7D71\uFF09\u3002\u4F7F\u7528\u4E0D\u540C\u6FFE\u93E1\u6E2C\u5F97\u7684\u5149\u5EA6\u5DEE\u5206\u5225\u7A31\u70BAU-B\u6216B-V\u7684\u8272\u6307\u6578\uFF0C\u6578\u503C\u8D8A\u5C0F\uFF0C\u6046\u661F\u7684\u984F\u8272\u8D8A\u63A5\u8FD1\u85CD\u8272\uFF1B\u53CD\u4E4B\uFF0C\u8272\u6307\u6578\u8D8A\u5927\uFF0C\u984F\u8272\u8D8A\u7D05\uFF08\u6216\u6EAB\u5EA6\u8D8A\u4F4E\uFF09\u3002\u9019\u662F\u4E00\u7CFB\u5217\u4EE5\u5C0D\u6578\u986F\u793A\u7684\u7D50\u679C\uFF0C\u660E\u4EAE\u7684\u5929\u9AD4\u5448\u73FE\u7684\u6578\u503C\u6BD4\u6697\u6DE1\u7684\u5929\u9AD4\u70BA\u5C0F\uFF08\u53EF\u4EE5\u70BA\u8CA0\u503C\uFF09\u3002\u5728\u6BD4\u8F03\u4E0A\uFF0C\u6DE1\u9EC3\u8272\u7684\u592A\u967DB-V\u8272\u6307\u6578\u70BA0.656\u00B10.005[1]\uFF0C\u85CD\u8272\u7684\u53C3\u5BBF\u4E03B-V\u7684\u6578\u503C\u70BA-0.03\uFF08\u53C3\u5BBF\u4E03\u7684B\u661F\u7B49\u70BA0.09\uFF0CV\u661F\u7B49\u70BA0.12\uFF0CB-V = -0.03\uFF09[2]\u3002 \u9059\u9060\u5929\u9AD4\u7684\u8272\u6307\u6578\u901A\u5E38\u90FD\u6703\u53D7\u5230\u661F\u969B\u6D88\u5149\u7684\u5F71\u97FF\u2014\u4E5F\u5C31\u662F\u661F\u969B\u7D05\u5316\u7684\u73FE\u8C61\u6BD4\u8FD1\u8DDD\u96E2\u7684\u5929\u9AD4\u660E\u986F\u3002\u7D05\u5316\u7684\u7E3D\u91CF\u4EE5\u8272\u9918\u9019\u7A2E\u7279\u6027\u4F86\u8868\u793A\uFF0C\u5728\u5B9A\u7FA9\u4E0A\u662F\u89C0\u6E2C\u5F97\u5230\u7684\u8272\u6307\u6578\u548C\u6B63\u5E38\u7684\u8272\u6307\u6578\uFF08\u6216\u672C\u8CEA\u7684\u8272\u6307\u6578\uFF09\uFF0C\u5047\u8A2D\u672A\u53D7\u5230\u6D88\u5149\u5F71\u97FF\u7684\u771F\u5BE6\u8272\u6307\u6578\u7684\u5DEE\u503C\u3002\u4F8B\u5982\uFF0C\u5728UBV\u6E2C\u5149\u7CFB\u7D71\uFF0C\u6211\u5011\u53EF\u4EE5\u5C07\u5BEB\u6210\uFF1A"@zh , "F\u00E4rgindex \u00E4r inom astronomin ett enkelt numeriskt uttryck som best\u00E4mmer f\u00E4rgen p\u00E5 ett objekt, vilket i fallet f\u00F6r en stj\u00E4rna ger dess temperatur. F\u00F6r att m\u00E4ta indexet observeras magnituden hos ett objekt med tv\u00E5 olika filter, till exempel U och B eller B och V, d\u00E4r U \u00E4r k\u00E4nsligt f\u00F6r ultraviolett ljus, B \u00E4r k\u00E4nsligt f\u00F6r bl\u00E5tt ljus och V \u00E4r k\u00E4nsligt f\u00F6r synligt (gr\u00F6n-gult) ljus. Skillnaden i magnitud mellan dessa filter kallas f\u00F6r U-B- respektive B-V-f\u00E4rgindex. Ett litet v\u00E4rde p\u00E5 f\u00E4rgindexet betyder att bl\u00E5tt ljus dominerar, och att objektet d\u00E4rf\u00F6r \u00E4r mycket varmt. P\u00E5 samma s\u00E4tt betyder ett h\u00F6gt f\u00E4rgindex att det r\u00F6r sig om ett r\u00F6dare och svalare objekt. Detta beror p\u00E5 den logaritmiska magnitudskalan, d\u00E4r ljusare objekt har l\u00E4gre (mer negativ) magnitud \u00E4n svarare objekt. Till exempel har den"@sv , "Dalam astronomi, indeks warna adalah sebuah nilai numerik sederhana yang menentukan warna suatu objek, dalam hal ini, sebuah bintang yang memberikan temperaturnya. Untuk mengukur indeks tersebut, seseorang mengamati sebuah objek melalui dua penyaring berbeda, seperti U dan B, atau B dan V, di mana U sensitif terhadap sinar ultraviolet, B sensitif terhadap cahaya biru, dan V sensitif terhadap cahaya nyata (hijau-kuning; lihat pula: ). Sekumpulan pita pelewat atau penyaring disebut sebuah . Perbedaan getaran yang ditemukan dalam penyaring ini disebut indeks warna U-B atau . Semakin kecil indeks warnanya, semakin banyak objek birunya (atau lebih panas). Sebaliknya, semakin besar indeks warnanya, semakin banyak objek merahnya (atau lebih dingin). Ini akibat dari skala getaran logaritmik, yang"@in , "En astronomie, l'indice de couleur d'un corps c\u00E9leste (\u00E9toile, ast\u00E9ro\u00EFde, ...) d\u00E9signe la diff\u00E9rence entre les magnitudes apparentes de ce corps obtenues dans deux bandes spectrales diff\u00E9rentes. Par exemple, l'indice de couleur B-V indique la diff\u00E9rence entre la magnitude apparente dans la bande spectrale B (c'est-\u00E0-dire bleue, autour de 442 nm) et la bande spectrale V (c'est-\u00E0-dire dans le visible, soit autour de 540 nm)."@fr , "Wska\u017Anik barwy \u2013 r\u00F3\u017Cnica wyra\u017Conych w wielko\u015Bciach gwiazdowych jasno\u015Bci gwiazdy w dwu barwach. Gwiazda emituje szerokie widmo promieniowania o nat\u0119\u017Ceniu zale\u017Cnym od d\u0142ugo\u015Bci fali, co powoduje, \u017Ce jasno\u015B\u0107 gwiazdy w r\u00F3\u017Cnych barwach jest r\u00F3\u017Cna. W systemie fotometrii tr\u00F3jbarwnej okre\u015Bla si\u0119 dwa wska\u017Aniki barwy: ultrafioletowy \u2013 r\u00F3wny r\u00F3\u017Cnicy jasno\u015Bci w barwach nadfioletowej i niebieskiej (U-B), oraz niebieski \u2013 r\u00F3wny r\u00F3\u017Cnicy jasno\u015Bci w barwach niebieskiej i \u017C\u00F3\u0142tej (B-V)."@pl , "\u5929\u6587\u5B66\u306B\u304A\u3051\u308B\u8272\u6307\u6570\uFF08\u3044\u308D\u3057\u3059\u3046\u3001\u82F1\u8A9E: Color index\uFF09\u3068\u306F\u5929\u4F53\u306E\u8272\u3092\u8868\u3059\u305F\u3081\u306E\u6307\u6A19\u3067\u3042\u308B\u3002\u7279\u306B\u6052\u661F\u306E\u5834\u5408\u306F\u8272\u6307\u6570\u306F\u305D\u306E\u661F\u306E\u8868\u9762\u6E29\u5EA6\u306E\u76EE\u5B89\u3068\u3082\u306A\u308B\u3002"@ja , "\u0641\u064A \u0639\u0644\u0645 \u0627\u0644\u0641\u0644\u0643 \u060C \u0645\u0624\u0634\u0631 \u0627\u0644\u0644\u0648\u0646 (\u0628\u0627\u0644\u0625\u0646\u062C\u0644\u064A\u0632\u064A\u0629: Color index)\u200F \u0647\u0648 \u062A\u0639\u0628\u064A\u0631 \u0639\u062F\u062F\u064A \u0628\u0633\u064A\u0637 \u0644\u062A\u062D\u062F\u062F \u0644\u0648\u0646 \u0627\u0644\u0623\u062C\u0631\u0627\u0645 \u060C \u0648 \u0645\u0646\u0647 \u062A\u0634\u062A\u0642 \u062F\u0631\u062C\u0629 \u062D\u0631\u0627\u0631\u0629 \u0627\u0644\u0646\u062C\u0648\u0645 . \u0623\u0635\u063A\u0631 \u0645\u0624\u0634\u0631 \u0644\u0648\u0646\u064A \u0647\u0648 \u0627\u0644\u0623\u0632\u0631\u0642 (\u0623\u0643\u062B\u0631 \u0633\u062E\u0648\u0646\u0629) . \u0648\u0639\u0644\u0649 \u0627\u0644\u0639\u0643\u0633\u060C \u0643\u0644\u0645\u0627 \u0632\u0627\u062F \u0645\u0624\u0634\u0631 \u0627\u0644\u0644\u0648\u0646\u060C \u0632\u0627\u062F \u0627\u062D\u0645\u0631\u0627\u0631 \u0627\u0644\u0643\u0627\u0626\u0646 (\u0623\u0643\u062B\u0631 \u0628\u0631\u0648\u062F\u0629 ) . \u0647\u0630\u0627 \u0646\u062A\u064A\u062C\u0629 \u0644\u0648\u063A\u0627\u0631\u064A\u062A\u0645 \u0627\u0644\u0645\u0633\u062A\u062E\u062F\u0645\u0629 \u0641\u064A \u062D\u0633\u0627\u0628 \u0627\u0644\u0642\u062F\u0631\u060C \u0648 \u0627\u0644\u062A\u064A \u062A\u0643\u0648\u0646 \u0641\u064A\u0647\u0627 \u0627\u0644\u0623\u062C\u0631\u0627\u0645 \u0627\u0644\u0623\u0643\u062B\u0631 \u0625\u0634\u0631\u0627\u0642\u0627 \u0623\u0635\u063A\u0631 (\u0623\u0643\u062B\u0631 \u0633\u0644\u0628\u064A\u0629) \u0645\u0646 \u0627\u0644\u0623\u062C\u0631\u0627\u0645 \u0627\u0644\u0628\u0627\u0647\u062A\u0629 . \u0648\u0639\u0644\u0649 \u0633\u0628\u064A\u0644 \u0627\u0644\u0645\u0642\u0627\u0631\u0646\u0629\u060C \u0627\u0644\u0634\u0645\u0633 \u0635\u0641\u0631\u0627\u0621 \u0644\u062F\u064A\u0647\u0627 \u0645\u0624\u0634\u0631 B-5 \u0645\u0646 0.656 \u00B1 0.005\u060C \u0641\u064A \u062D\u064A\u0646 \u0623\u0646 \u0646\u062C\u0645 \u0631\u062C\u0644 \u0627\u0644\u062C\u0628\u0627\u0631 \u0644\u062F\u064A\u0647 B\u2013V \u0642\u064A\u0645\u062A\u0647 \u20130.03 (\u0642\u062F\u0631 B \u0647\u0648 0.09 \u0648 \u0642\u062F\u0631 V \u0647\u0648 0.12 ) \u0648 \u0628\u0627\u0644\u062D\u0633\u0627\u0628 B-V=-0.03."@ar , "En astronomia, l'\u00EDndex de color \u00E9s la difer\u00E8ncia entre magnituds aparents d'un astre. \u00C9s una expressi\u00F3 num\u00E8rica simple que determina el color d'un objecte, que en el cas de les estrelles ens dona la seva temperatura. Els \u00EDndexs dels objectes distants estan sovint afectats per l', aix\u00F2 \u00E9s, estan m\u00E9s que les estrelles m\u00E9s pr\u00F2ximes. La quantitat d'enrogiment est\u00E0 caracteritzat per un , definit com a la difer\u00E8ncia entre l'\u00EDndex de color observat i l'\u00EDndex de color normal (o \u00EDndex de color intr\u00EDnsec), l'hipot\u00E8tic \u00EDndex de color vertader de l'estrella no afectat per l'extinci\u00F3."@ca , "\u041F\u043E\u043A\u0430\u0437\u0430\u0442\u0435\u043B\u044C \u0446\u0432\u0435\u0442\u0430 (\u0432 \u0430\u0441\u0442\u0440\u043E\u043D\u043E\u043C\u0438\u0438) \u2014 \u0440\u0430\u0437\u043D\u043E\u0441\u0442\u044C \u0437\u0432\u0451\u0437\u0434\u043D\u044B\u0445 \u0432\u0435\u043B\u0438\u0447\u0438\u043D \u0430\u0441\u0442\u0440\u043E\u043D\u043E\u043C\u0438\u0447\u0435\u0441\u043A\u043E\u0433\u043E \u043E\u0431\u044A\u0435\u043A\u0442\u0430, \u0438\u0437\u043C\u0435\u0440\u0435\u043D\u043D\u044B\u0445 \u0432 \u0434\u0432\u0443\u0445 \u0441\u043F\u0435\u043A\u0442\u0440\u0430\u043B\u044C\u043D\u044B\u0445 \u0434\u0438\u0430\u043F\u0430\u0437\u043E\u043D\u0430\u0445."@ru . @prefix dcterms: . @prefix dbc: . dbr:Color_index dcterms:subject dbc:Photometric_systems , dbc:Index_numbers ; dbo:abstract "\u03A3\u03C4\u03B7\u03BD \u03B1\u03C3\u03C4\u03C1\u03BF\u03BD\u03BF\u03BC\u03AF\u03B1 \u03BF \u03B4\u03B5\u03AF\u03BA\u03C4\u03B7\u03C2 \u03C7\u03C1\u03CE\u03BC\u03B1\u03C4\u03BF\u03C2 (color index) \u03B5\u03AF\u03BD\u03B1\u03B9 \u03BC\u03B9\u03B1 \u03B1\u03C0\u03BB\u03AE \u03B1\u03C1\u03B9\u03B8\u03BC\u03B7\u03C4\u03B9\u03BA\u03AE \u03AD\u03BA\u03C6\u03C1\u03B1\u03C3\u03B7 \u03C4\u03BF\u03C5 \u03C7\u03C1\u03CE\u03BC\u03B1\u03C4\u03BF\u03C2 \u03B5\u03BD\u03CC\u03C2 \u03BF\u03C5\u03C1\u03AC\u03BD\u03B9\u03BF\u03C5 \u03C3\u03CE\u03BC\u03B1\u03C4\u03BF\u03C2. \u03A7\u03C1\u03B7\u03C3\u03B9\u03BC\u03BF\u03C0\u03BF\u03B9\u03B5\u03AF\u03C4\u03B1\u03B9 \u03B9\u03B4\u03B9\u03B1\u03AF\u03C4\u03B5\u03C1\u03B1 \u03C3\u03C4\u03B7\u03BD \u03C0\u03B5\u03C1\u03AF\u03C0\u03C4\u03C9\u03C3\u03B7 \u03C4\u03C9\u03BD \u03B1\u03C3\u03C4\u03AD\u03C1\u03C9\u03BD, \u03B3\u03B9\u03B1 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\u03B1\u03C3\u03C4\u03AD\u03C1\u03B5\u03C2 \u03C9\u03C2 \u03BC\u03AD\u03BB\u03B1\u03BD\u03B1 \u03C3\u03CE\u03BC\u03B1\u03C4\u03B1, \u03BC\u03B5 \u03C7\u03C1\u03AE\u03C3\u03B7 \u03C4\u03B7\u03C2 \u03C3\u03C7\u03AD\u03C3\u03B5\u03C9\u03C2 \u03C4\u03BF\u03C5 Ballesteros: \u039F\u03B9 \u03B4\u03B5\u03AF\u03BA\u03C4\u03B5\u03C2 \u03C7\u03C1\u03CE\u03BC\u03B1\u03C4\u03BF\u03C2 \u03BC\u03B1\u03BA\u03C1\u03B9\u03BD\u03CE\u03BD \u03C3\u03C9\u03BC\u03AC\u03C4\u03C9\u03BD \u03B5\u03C0\u03B7\u03C1\u03B5\u03AC\u03B6\u03BF\u03BD\u03C4\u03B1\u03B9 (\u03B1\u03BB\u03BB\u03BF\u03B9\u03CE\u03BD\u03BF\u03BD\u03C4\u03B1\u03B9) \u03C3\u03C5\u03BD\u03AE\u03B8\u03C9\u03C2 \u03B1\u03C0\u03CC \u03C4\u03B7 , \u03BC\u03B5 \u03B1\u03C0\u03BF\u03C4\u03AD\u03BB\u03B5\u03C3\u03BC\u03B1 \u03BD\u03B1 \u03B5\u03AF\u03BD\u03B1\u03B9 \u00AB\u03BC\u03B5\u03C4\u03B1\u03C4\u03BF\u03C0\u03B9\u03C3\u03BC\u03AD\u03BD\u03BF\u03B9\u00BB \u03C0\u03C1\u03BF\u03C2 \u03C4\u03BF \u03BA\u03CC\u03BA\u03BA\u03B9\u03BD\u03BF (\u03B5\u03C1\u03CD\u03B8\u03C1\u03C9\u03C3\u03B7) \u03C3\u03B5 \u03C3\u03C7\u03AD\u03C3\u03B7 \u03BC\u03B5 \u03B5\u03BA\u03B5\u03AF\u03BD\u03BF\u03C5\u03C2 \u03C4\u03C9\u03BD \u03B3\u03B5\u03B9\u03C4\u03BF\u03BD\u03B9\u03BA\u03CE\u03BD \u03BC\u03B1\u03C2 \u03B1\u03C3\u03C4\u03AD\u03C1\u03C9\u03BD. \u0397 \u03B5\u03C1\u03CD\u03B8\u03C1\u03C9\u03C3\u03B7 \u03B5\u03BA\u03C6\u03C1\u03AC\u03B6\u03B5\u03C4\u03B1\u03B9 \u03C0\u03BF\u03C3\u03BF\u03C4\u03B9\u03BA\u03AC \u03BC\u03B5 \u03C4\u03B7 \u03BB\u03B5\u03B3\u03CC\u03BC\u03B5\u03BD\u03B7 \u00AB\u03C0\u03B5\u03C1\u03AF\u03C3\u03C3\u03B5\u03B9\u03B1 \u03C7\u03C1\u03CE\u03BC\u03B1\u03C4\u03BF\u03C2\u00BB (color excess), \u03BF\u03C1\u03B9\u03B6\u03CC\u03BC\u03B5\u03BD\u03B7 \u03C9\u03C2 \u03B7 \u03B4\u03B9\u03B1\u03C6\u03BF\u03C1\u03AC \u03BC\u03B5\u03C4\u03B1\u03BE\u03CD \u03C4\u03BF\u03C5 \u03C0\u03B1\u03C1\u03B1\u03C4\u03B7\u03C1\u03BF\u03CD\u03BC\u03B5\u03BD\u03BF\u03C5 \u03B4\u03B5\u03AF\u03BA\u03C4\u03B7 \u03C7\u03C1\u03CE\u03BC\u03B1\u03C4\u03BF\u03C2 \u03BA\u03B1\u03B9 \u03C4\u03BF\u03C5 \u03BA\u03B1\u03BD\u03BF\u03BD\u03B9\u03BA\u03BF\u03CD \u03AE \u03B5\u03BD\u03B4\u03BF\u03B3\u03B5\u03BD\u03BF\u03CD\u03C2 \u03B4\u03B5\u03AF\u03BA\u03C4\u03B7 \u03C7\u03C1\u03CE\u03BC\u03B1\u03C4\u03BF\u03C2 (normal \u03AE intrinsic color index), \u03C4\u03BF\u03BD \u03C5\u03C0\u03BF\u03B8\u03B5\u03C4\u03B9\u03BA\u03CC \u03C0\u03C1\u03B1\u03B3\u03BC\u03B1\u03C4\u03B9\u03BA\u03CC \u03B4\u03B5\u03AF\u03BA\u03C4\u03B7 \u03C7\u03C1\u03CE\u03BC\u03B1\u03C4\u03BF\u03C2 \u03C4\u03BF\u03C5 \u03B1\u03C3\u03C4\u03AD\u03C1\u03B1, \u03C7\u03C9\u03C1\u03AF\u03C2 \u03C4\u03B7\u03BD \u03B5\u03C0\u03AF\u03B4\u03C1\u03B1\u03C3\u03B7 \u03C4\u03B7\u03C2 \u03B1\u03C0\u03BF\u03C1\u03C1\u03BF\u03C6\u03AE\u03C3\u03B5\u03C9\u03C2. \u0393\u03B9\u03B1 \u03C4\u03BF \u03C6\u03C9\u03C4\u03BF\u03BC\u03B5\u03C4\u03C1\u03B9\u03BA\u03CC \u03C3\u03CD\u03C3\u03C4\u03B7\u03BC\u03B1 UBV \u03BC\u03C0\u03BF\u03C1\u03BF\u03CD\u03BC\u03B5 \u03BD\u03B1 \u03B3\u03C1\u03AC\u03C8\u03BF\u03C5\u03BC\u03B5 \u03B3\u03B9\u03B1 \u03C4\u03B7 \u03B4\u03B9\u03B1\u03C3\u03C4\u03C1\u03B9\u03BA\u03AE \u03B1\u03C0\u03BF\u03C1\u03C1\u03CC\u03C6\u03B7\u03C3\u03B7 \u0395: \u03A4\u03B1 \u03C6\u03AF\u03BB\u03C4\u03C1\u03B1 UBV \u03BA\u03B1\u03B9 RI \u03BF\u03C1\u03AF\u03C3\u03B8\u03B7\u03BA\u03B1\u03BD \u03B1\u03C1\u03C7\u03B9\u03BA\u03CE\u03C2 \u03C9\u03C2 \u03C3\u03C5\u03B3\u03BA\u03B5\u03BA\u03C1\u03B9\u03BC\u03AD\u03BD\u03BF\u03B9 \u03C3\u03C5\u03BD\u03B4\u03C5\u03B1\u03C3\u03BC\u03BF\u03AF \u03B3\u03C5\u03AC\u03BB\u03B9\u03BD\u03C9\u03BD \u03C6\u03AF\u03BB\u03C4\u03C1\u03C9\u03BD \u03BC\u03B5 \u03C6\u03C9\u03C4\u03CC\u03BC\u03B5\u03C4\u03C1\u03B1 . \u039F M.S. Bessell \u03BA\u03B1\u03B8\u03CC\u03C1\u03B9\u03C3\u03B5 \u03AD\u03BD\u03B1 \u03C3\u03CD\u03BD\u03BF\u03BB\u03BF \u03B1\u03C0\u03CC \u03B4\u03B9\u03B1\u03C0\u03B5\u03C1\u03B1\u03C4\u03CC\u03C4\u03B7\u03C4\u03B5\u03C2 \u03C6\u03AF\u03BB\u03C4\u03C1\u03C9\u03BD \u03C3\u03B5 \u03C3\u03C7\u03AD\u03C3\u03B7 \u03BC\u03B5 \u03AD\u03BD\u03B1\u03BD \u03B1\u03BD\u03B9\u03C7\u03BD\u03B5\u03C5\u03C4\u03AE \u03BC\u03B5 \u03B1\u03C0\u03CC\u03BA\u03C1\u03B9\u03C3\u03B7 \u03B1\u03BD\u03B5\u03BE\u03AC\u03C1\u03C4\u03B7\u03C4\u03B7 \u03C4\u03BF\u03C5 \u03C7\u03C1\u03CE\u03BC\u03B1\u03C4\u03BF\u03C2, \u03C0\u03BF\u03C3\u03BF\u03C4\u03B9\u03BA\u03BF\u03C0\u03BF\u03B9\u03CE\u03BD\u03C4\u03B1\u03C2 \u03AD\u03C4\u03C3\u03B9 \u03C4\u03BF\u03BD \u03C5\u03C0\u03BF\u03BB\u03BF\u03B3\u03B9\u03C3\u03BC\u03CC \u03C4\u03C9\u03BD \u03B4\u03B5\u03B9\u03BA\u03C4\u03CE\u03BD \u03C7\u03C1\u03CE\u03BC\u03B1\u03C4\u03BF\u03C2. \u0393\u03B9\u03B1 \u03C0\u03B5\u03C1\u03B9\u03C3\u03C3\u03CC\u03C4\u03B5\u03C1\u03B7 \u03B1\u03BA\u03C1\u03AF\u03B2\u03B5\u03B9\u03B1, \u03BA\u03B1\u03C4\u03AC\u03BB\u03BB\u03B7\u03BB\u03B1 \u03B6\u03B5\u03CD\u03B3\u03B7 \u03C6\u03AF\u03BB\u03C4\u03C1\u03C9\u03BD \u03B5\u03C0\u03B9\u03BB\u03AD\u03B3\u03BF\u03BD\u03C4\u03B1\u03B9 \u03B1\u03BD\u03AC\u03BB\u03BF\u03B3\u03B1 \u03BC\u03B5 \u03C4\u03B7 \u03B8\u03B5\u03C1\u03BC\u03BF\u03BA\u03C1\u03B1\u03C3\u03AF\u03B1 \u03C4\u03BF\u03C5 \u03C3\u03CE\u03BC\u03B1\u03C4\u03BF\u03C2: B\u2212V \u03B3\u03B9\u03B1 \u03C4\u03BF\u03C5\u03C2 \u03BC\u03AD\u03C3\u03BF\u03C5\u03C2 \u03B1\u03C3\u03C4\u03AD\u03C1\u03B5\u03C2, U\u2212V \u03B3\u03B9\u03B1 \u03C4\u03BF\u03C5\u03C2 \u03B8\u03B5\u03C1\u03BC\u03CC\u03C4\u03B5\u03C1\u03BF\u03C5\u03C2 \u03BA\u03B1\u03B9 R\u2212I \u03B3\u03B9\u03B1 \u03C8\u03C5\u03C7\u03C1\u03CC\u03C4\u03B5\u03C1\u03B1 \u03C3\u03CE\u03BC\u03B1\u03C4\u03B1 (\u03B5\u03C1\u03C5\u03B8\u03C1\u03BF\u03CD\u03C2 \u03BA\u03B1\u03B9 \u03C6\u03B1\u03B9\u03BF\u03CD\u03C2 \u03BD\u03AC\u03BD\u03BF\u03C5\u03C2)."@el , "\u8272\u6307\u6578\u662F\u5929\u6587\u5B78\u4E2D\u5229\u7528\u984F\u8272\u4F86\u986F\u793A\u6046\u661F\u8868\u9762\u6EAB\u5EA6\u7684\u4E00\u500B\u7D14\u91CF\u3002\u8981\u6E2C\u91CF\u51FA\u9019\u500B\u6307\u6578\uFF0C\u89C0\u6E2C\u8005\u9700\u8981\u4F7F\u7528\u5169\u7A2E\u4E0D\u540C\u7684\u6FFE\u93E1\uFF0CU\u548CB\u6216B\u548CV\uFF0C\u4F9D\u5E8F\u6E2C\u51FA\u76EE\u6A19\u7269\u7684\u5149\u5EA6\u3002\u9019\u662F\u4E00\u5957\u5F88\u5E38\u7528\u7684\u901A\u5E36\u6216\u6FFE\u93E1\u6E2C\u5149\u7CFB\u7D71\uFF0CU\u662F\u5C0D\u7D2B\u5916\u7DDA\u9748\u654F\u7684\u6FFE\u93E1\uFF0CB\u662F\u5C0D\u85CD\u5149\u9748\u654F\u7684\u6FFE\u93E1\uFF0CV\u662F\u5C0D\u9EC3\u7DA0\u8272\u7684\u53EF\u898B\u5149\u9748\u654F\u7684\u6FFE\u93E1\uFF08\u53C3\u8003UBV\u7CFB\u7D71\uFF09\u3002\u4F7F\u7528\u4E0D\u540C\u6FFE\u93E1\u6E2C\u5F97\u7684\u5149\u5EA6\u5DEE\u5206\u5225\u7A31\u70BAU-B\u6216B-V\u7684\u8272\u6307\u6578\uFF0C\u6578\u503C\u8D8A\u5C0F\uFF0C\u6046\u661F\u7684\u984F\u8272\u8D8A\u63A5\u8FD1\u85CD\u8272\uFF1B\u53CD\u4E4B\uFF0C\u8272\u6307\u6578\u8D8A\u5927\uFF0C\u984F\u8272\u8D8A\u7D05\uFF08\u6216\u6EAB\u5EA6\u8D8A\u4F4E\uFF09\u3002\u9019\u662F\u4E00\u7CFB\u5217\u4EE5\u5C0D\u6578\u986F\u793A\u7684\u7D50\u679C\uFF0C\u660E\u4EAE\u7684\u5929\u9AD4\u5448\u73FE\u7684\u6578\u503C\u6BD4\u6697\u6DE1\u7684\u5929\u9AD4\u70BA\u5C0F\uFF08\u53EF\u4EE5\u70BA\u8CA0\u503C\uFF09\u3002\u5728\u6BD4\u8F03\u4E0A\uFF0C\u6DE1\u9EC3\u8272\u7684\u592A\u967DB-V\u8272\u6307\u6578\u70BA0.656\u00B10.005[1]\uFF0C\u85CD\u8272\u7684\u53C3\u5BBF\u4E03B-V\u7684\u6578\u503C\u70BA-0.03\uFF08\u53C3\u5BBF\u4E03\u7684B\u661F\u7B49\u70BA0.09\uFF0CV\u661F\u7B49\u70BA0.12\uFF0CB-V = -0.03\uFF09[2]\u3002 \u9059\u9060\u5929\u9AD4\u7684\u8272\u6307\u6578\u901A\u5E38\u90FD\u6703\u53D7\u5230\u661F\u969B\u6D88\u5149\u7684\u5F71\u97FF\u2014\u4E5F\u5C31\u662F\u661F\u969B\u7D05\u5316\u7684\u73FE\u8C61\u6BD4\u8FD1\u8DDD\u96E2\u7684\u5929\u9AD4\u660E\u986F\u3002\u7D05\u5316\u7684\u7E3D\u91CF\u4EE5\u8272\u9918\u9019\u7A2E\u7279\u6027\u4F86\u8868\u793A\uFF0C\u5728\u5B9A\u7FA9\u4E0A\u662F\u89C0\u6E2C\u5F97\u5230\u7684\u8272\u6307\u6578\u548C\u6B63\u5E38\u7684\u8272\u6307\u6578\uFF08\u6216\u672C\u8CEA\u7684\u8272\u6307\u6578\uFF09\uFF0C\u5047\u8A2D\u672A\u53D7\u5230\u6D88\u5149\u5F71\u97FF\u7684\u771F\u5BE6\u8272\u6307\u6578\u7684\u5DEE\u503C\u3002\u4F8B\u5982\uFF0C\u5728UBV\u6E2C\u5149\u7CFB\u7D71\uFF0C\u6211\u5011\u53EF\u4EE5\u5C07\u5BEB\u6210\uFF1A \u5927\u90E8\u5206\u5149\u5B78\u9818\u57DF\u7684\u5929\u6587\u5B78\u5BB6\u4F7F\u7528\u7684\u901A\u5E36\u662F\u6FFE\u93E1\uFF0C\u6B64\u8655U\u3001B\u548CV\u8207\u524D\u8FF0\u7684\u76F8\u540C\uFF0CR\u662F\u7D05\u8272\u6FFE\u93E1\uFF0CI\u662F\u7D05\u5916\u5149\u6FFE\u93E1\u3002\u9019\u5957\u6FFE\u93E1\u7CFB\u7D71\u6709\u6642\u4E5F\u4EE5\u767C\u660E\u8005\u7684\u540D\u5B57\uFF0C\u7A31\u70BA\uFF08Johnson-Cousins filter system\uFF09\uFF08\u898B\u53C3\u8003\u8CC7\u6599\uFF09\u3002\u9019\u4E9B\u6FFE\u93E1\u6709\u6642\u6703\u548C\u5149\u96FB\u500D\u589E\u7BA1\u548C\u73BB\u7483\u6FFE\u93E1\u505A\u6210\u7279\u6B8A\u7684\u7D44\u5408\uFF0C\u50CF\u662F\u5C31\u662F\u8A2D\u7F6E\u5728\u5E73\u53F0\u4E0A\u7684\u7279\u6B8A\u6FFE\u93E1\u50B3\u5C0E\u7D44\u5408\uFF0C\u53EF\u4EE5\u5C0D\u8272\u6307\u6578\u9032\u884C\u5B9A\u91CF\u7684\u6F14\u7B97\u3002\u56B4\u683C\u4F86\u8AAA\uFF0C\u9078\u64C7\u4E00\u7D44\u9069\u7576\u7684\u6FFE\u93E1\u6642\uFF0C\u5FC5\u9808\u8003\u616E\u5F85\u6E2C\u5929\u9AD4\u7684\u6EAB\u5EA6\u7BC4\u570D\uFF1AB-V\u9069\u5408\u4E2D\u9593\u7BC4\u570D\u7684\u6EAB\u5EA6\uFF0CU-V\u9069\u5408\u9AD8\u6EAB\u7684\u5929\u9AD4\uFF0C\u800CR-I\u9069\u7528\u65BC\u4F4E\u6EAB\u7684\u5929\u9AD4\u3002"@zh , "\u5929\u6587\u5B66\u306B\u304A\u3051\u308B\u8272\u6307\u6570\uFF08\u3044\u308D\u3057\u3059\u3046\u3001\u82F1\u8A9E: Color index\uFF09\u3068\u306F\u5929\u4F53\u306E\u8272\u3092\u8868\u3059\u305F\u3081\u306E\u6307\u6A19\u3067\u3042\u308B\u3002\u7279\u306B\u6052\u661F\u306E\u5834\u5408\u306F\u8272\u6307\u6570\u306F\u305D\u306E\u661F\u306E\u8868\u9762\u6E29\u5EA6\u306E\u76EE\u5B89\u3068\u3082\u306A\u308B\u3002"@ja , "En astronomia, l'\u00EDndex de color \u00E9s la difer\u00E8ncia entre magnituds aparents d'un astre. \u00C9s una expressi\u00F3 num\u00E8rica simple que determina el color d'un objecte, que en el cas de les estrelles ens dona la seva temperatura. Per mesurar l'\u00EDndex, s'observa la magnitud d'un objecte successivament amb dos diferents instruments, tals com un U i un B, o un B i un V, on U \u00E9s sensible als raigs ultraviolats, B \u00E9s sensible a la llum blava, i V \u00E9s sensible a la llum visible (verd - groc) (vegeu: ). El conjunt de bandes o de filtres s'anomena sistema fotom\u00E8tric. La difer\u00E8ncia de magnituds obtinguda amb diferents instruments s'anomena l'\u00EDndex de color U-B o B-V, respectivament. Quan menor \u00E9s l'\u00EDndex de color, m\u00E9s blau (o m\u00E9s calent) \u00E9s l'objecte. A la inversa, con m\u00E9s gran \u00E9s l'\u00EDndex de color, m\u00E9s vermell (o m\u00E9s fred) \u00E9s l'objecte. Aix\u00F2 \u00E9s conseq\u00FC\u00E8ncia de l'escala logar\u00EDtmica de magnitud, en la qual els objectes m\u00E9s brillants tenen una magnitud (m\u00E9s negativa) menor que els d'esclat m\u00E9s feble. Per exemple, el Sol, de color, groc t\u00E9 un \u00EDndex B-V 0,656\u00B10,005, mentre Rigel, de color blau, t\u00E9 un \u00EDndex B-V -0,03 (la seva magnitud B \u00E9s 0,09 i la seva magnitud V \u00E9s 0,12, B-V=-0,03). Els \u00EDndexs dels objectes distants estan sovint afectats per l', aix\u00F2 \u00E9s, estan m\u00E9s que les estrelles m\u00E9s pr\u00F2ximes. La quantitat d'enrogiment est\u00E0 caracteritzat per un , definit com a la difer\u00E8ncia entre l'\u00EDndex de color observat i l'\u00EDndex de color normal (o \u00EDndex de color intr\u00EDnsec), l'hipot\u00E8tic \u00EDndex de color vertader de l'estrella no afectat per l'extinci\u00F3. Per exemple, en el sistema fotom\u00E8tric UBV podem escriure pel : Les bandes que les majoria dels astr\u00F2noms usen s\u00F3n les dels filtres , on els filtres U, B, i V s\u00F3n els abans mencionats, el filtre R deixa passar la llum de color roig, i el filtre I deixa passar la llum infraroja. Aquest sistema fotom\u00E8tric a vegades s'anomena el , anomenat aix\u00ED degut als noms dels creadors del sistema (vegeu les refer\u00E8ncies). Aquests filtres foren determinats com a combinacions particulars de filtres de vidre o tubs fotomultiplicadors. don\u00E0 unes especificacions per un conjunt de filtres de transmissi\u00F3 per una resposta plana del detector, d'aquesta manera es quantifica el c\u00E0lcul dels \u00EDndexs de color. Per precisi\u00F3, s'escullen parells de filtres apropiats depenent de la temperatura de l'objecte: B-V pels objectes del rang mitj\u00E0, U-V pels objectes m\u00E9s calents, i R-I pels m\u00E9s freds."@ca , "( \uAD11\uC5C5\uC5D0\uC11C \uC554\uC11D\uC5D0 \uB4E4\uC5B4 \uC788\uB294 \uC720\uC0C9 \uAD11\uBB3C\uC758 \uC591\uC744 \uBD80\uD53C \uBC31\uBD84\uC728\uB85C \uB098\uD0C0\uB0B8 \uC218\uC5D0 \uB300\uD574\uC11C\uB294 \uBB38\uC11C\uB97C \uCC38\uACE0\uD558\uC2ED\uC2DC\uC624.) \uCC9C\uBB38\uD559\uC5D0\uC11C \uC0C9\uC9C0\uC218\uB780 \uBCC4\uC758 \uD45C\uBA74\uC628\uB3C4\uB97C \uC54C \uC218 \uC788\uAC8C \uD574\uC8FC\uB294 \uCC9C\uCCB4\uC758 \uC0C9\uC744 \uCE21\uC815\uD558\uB294 \uB2E8\uC21C\uD55C \uC218\uC801 \uD45C\uD604\uC774\uB2E4.\uC0C9\uC9C0\uC218\uB97C \uCE21\uC815\uD558\uAE30 \uC704\uD574\uC11C\uB294 \uC5F0\uC18D\uC73C\uB85C U\uC640 B\uB098 B\uC640 V\uC640 \uAC19\uC774, \uB450 \uAC1C\uC758 \uB2E4\uB978 \uD544\uD130\uB97C \uD1B5\uD574 \uCC9C\uCCB4\uC758 \uB4F1\uAE09\uC744 \uAD00\uCE21\uD55C\uB2E4. (U\uB294 \uC790\uC678\uC120\uC5D0 \uBBFC\uAC10\uD558\uACE0, B\uB294 \uCCAD\uC0C9 \uBE5B\uC5D0 \uBBFC\uAC10\uD558\uACE0, V\uB294 \uAC00\uC2DC\uAD11\uC120(\uB179\uC0C9-\uB178\uB780\uC0C9)\uC5D0 \uBBFC\uAC10\uD558\uB2E4.) \uD328\uC2A4\uBC34\uB4DC(\uD1B5\uACFC\uB300\uC5ED: \uD544\uD130\uB97C \uC9C0\uB098\uB294 \uC2E0\uD638\uAC00 \uAC70\uC758 \uAC10\uC1E0\uD558\uC9C0 \uC54A\uB294 \uC8FC\uD30C\uC218\uC758 \uBC94\uC704)\uB098 \uD544\uD130\uC758 \uD55C \uC138\uD2B8\uB97C \uAD11\uB3C4 \uCE21\uC815\uACC4\uB77C\uACE0\uB3C4 \uBD80\uB978\uB2E4.\uAC01\uAC01 \uB4F1\uAE09\uC758 \uCC28\uC774\uB294 U-B \uB610\uB294 B-V \uC0C9\uC9C0\uC218\uC778 \uD544\uD130\uB4E4\uB85C \uC54C\uC544\uB0B8\uB2E4. \uB9E4\uC6B0 \uC791\uC740 \uC0C9\uC9C0\uC218\uB294 \uB9E4\uC6B0 \uD478\uB978(\uB610\uB294 \uB9E4\uC6B0 \uB728\uAC70\uC6B4) \uCC9C\uCCB4\uC774\uB2E4.\uBC18\uB300\uB85C \uC880 \uD070 \uC0C9\uC9C0\uC218\uB294 \uB354 \uBD89\uC740(\uB610\uB294 \uB354 \uCC28\uAC00\uC6B4) \uCC9C\uCCB4\uC774\uB2E4. \uC774\uAC83\uC740 \uBC1D\uC740 \uCC9C\uCCB4\uAC00 \uADF8\uBCF4\uB2E4 \uC5B4\uB450\uC6B4 \uCC9C\uCCB4\uBCF4\uB2E4 \uB354 \uC791\uC740 \uB4F1\uAE09\uC744 \uAC16\uB294 \uC218\uC758 \uB4F1\uAE09 \uCC99\uB3C4 \uB54C\uBB38\uC774\uB2E4.\uBE44\uAD50\uD558\uC790\uBA74, \uD669\uC0C9\uC758 \uD0DC\uC591\uC740 0.656\u00B10.005\uC758 B-V\uC9C0\uC218\uB97C \uAC16\uACE0, \uD478\uB974\uC2A4\uB984\uD55C \uB9AC\uAC94\uC740 -0.03 B-V\uC9C0\uC218\uB97C \uAC16\uB294\uB2E4.(\uB9AC\uAC94\uC758 B-\uB4F1\uAE09\uC740 0.09\uC774\uACE0 V-\uB4F1\uAE09\uC740 0.12\uB85C B-V = -0.03\uC774\uB2E4.) \uBA3C \uAC70\uB9AC\uC5D0 \uC788\uB294 \uCC9C\uCCB4\uB4E4\uC758 \uC0C9\uC9C0\uC218\uB294 \uC131\uAC04 \uC18C\uAD11\uC5D0 \uC601\uD5A5\uC744 \uBC1B\uB294\uB2E4. \uC989, \uADF8 \uC0C9\uC9C0\uC218\uB4E4\uC740 \uC880 \uB354 \uAC00\uAE4C\uC6B4 \uBCC4\uB4E4\uC758 \uC0C9\uC9C0\uC218\uBCF4\uB2E4 \uBD89\uB2E4. \uC774\uB97C \uC131\uAC04\uC801\uC0C9\uD654\uB77C\uACE0 \uBD80\uB974\uB294\uB370, \uBD89\uAC8C \uB418\uB294 \uC591\uC740 \uAD00\uCE21\uD55C \uC0C9\uC9C0\uC218\uC640 \uC2E4\uC81C \uC0C9\uC9C0\uC218\uC640\uC758 \uCC28\uC774\uB85C\uBD80\uD130 \uC0DD\uAE30\uB294 \uC0C9 \uCD08\uACFC\uC5D0 \uC758\uD574 \uACB0\uC815\uB41C\uB2E4. \uC608\uB97C \uB4E4\uBA74, UBV \uCE21\uAD11\uACC4\uC5D0\uC11C \uB2E4\uC74C\uACFC \uAC19\uC774 \uC4F8 \uC218 \uC788\uB2E4. \uB300\uBD80\uBD84\uC758 \uAD11\uD559\uCC9C\uBB38\uD559\uC790\uB4E4 \uC0AC\uC6A9\uD558\uB294 \uD328\uC2A4\uBC34\uB4DC\uB294 UBVRI \uD544\uD130\uC774\uB2E4.(U, B, V\uB294 \uC704\uC5D0 \uC5B8\uAE09\uD55C \uAC83\uACFC \uAC19\uACE0, R\uC740 \uBD89\uC740 \uC0C9 \uBE5B\uC744 \uD22C\uACFC\uC2DC\uD0A4\uACE0, I\uB294 \uC801\uC678\uC120\uC744 \uD22C\uACFC \uC2DC\uD0A8\uB2E4.) \uC774 \uD544\uD130 \uACC4\uB294 \uB54C\uB860 \uACC4\uC758 \uC6D0\uC870\uB77C \uC54C\uB824\uC9C4 Johnson-Cousins \uD544\uD130 \uACC4\uB77C\uACE0 \uBD80\uB978\uB2E4. \uC774\uB4E4 \uD544\uD130\uB4E4\uC740 \uC720\uB9AC \uD544\uD130\uC640 \uAD11\uC804\uC790 \uC99D\uBC30\uAD00\uC758 \uD2B9\uC218\uD55C \uACB0\uD569\uC774\uB77C \uD55C\uB2E4. \uC815\uD655\uD788 \uB9D0\uD558\uC790\uBA74, \uD2B9\uC720\uC758 \uD544\uD130\uB4E4\uC758 \uC30D\uC740 \uCC9C\uCCB4\uC758 \uC0C9\uC628\uB3C4\uC5D0 \uC758\uC874\uD558\uC5EC \uC120\uD0DD\uB41C\uB2E4.; B-V\uB294 \uC8FC\uACC4\uC5F4\uC131\uC5D0, U-V\uB294 \uB728\uAC70\uC6B4 \uCC9C\uCCB4\uB4E4\uC5D0, R-I\uB294 \uCC28\uAC00\uC6B4 \uCC9C\uCCB4\uB4E4\uC5D0 \uC0AC\uC6A9\uB41C\uB2E4."@ko , "\u0641\u064A \u0639\u0644\u0645 \u0627\u0644\u0641\u0644\u0643 \u060C \u0645\u0624\u0634\u0631 \u0627\u0644\u0644\u0648\u0646 (\u0628\u0627\u0644\u0625\u0646\u062C\u0644\u064A\u0632\u064A\u0629: Color index)\u200F \u0647\u0648 \u062A\u0639\u0628\u064A\u0631 \u0639\u062F\u062F\u064A \u0628\u0633\u064A\u0637 \u0644\u062A\u062D\u062F\u062F \u0644\u0648\u0646 \u0627\u0644\u0623\u062C\u0631\u0627\u0645 \u060C \u0648 \u0645\u0646\u0647 \u062A\u0634\u062A\u0642 \u062F\u0631\u062C\u0629 \u062D\u0631\u0627\u0631\u0629 \u0627\u0644\u0646\u062C\u0648\u0645 . \u0623\u0635\u063A\u0631 \u0645\u0624\u0634\u0631 \u0644\u0648\u0646\u064A \u0647\u0648 \u0627\u0644\u0623\u0632\u0631\u0642 (\u0623\u0643\u062B\u0631 \u0633\u062E\u0648\u0646\u0629) . \u0648\u0639\u0644\u0649 \u0627\u0644\u0639\u0643\u0633\u060C \u0643\u0644\u0645\u0627 \u0632\u0627\u062F \u0645\u0624\u0634\u0631 \u0627\u0644\u0644\u0648\u0646\u060C \u0632\u0627\u062F \u0627\u062D\u0645\u0631\u0627\u0631 \u0627\u0644\u0643\u0627\u0626\u0646 (\u0623\u0643\u062B\u0631 \u0628\u0631\u0648\u062F\u0629 ) . \u0647\u0630\u0627 \u0646\u062A\u064A\u062C\u0629 \u0644\u0648\u063A\u0627\u0631\u064A\u062A\u0645 \u0627\u0644\u0645\u0633\u062A\u062E\u062F\u0645\u0629 \u0641\u064A \u062D\u0633\u0627\u0628 \u0627\u0644\u0642\u062F\u0631\u060C \u0648 \u0627\u0644\u062A\u064A \u062A\u0643\u0648\u0646 \u0641\u064A\u0647\u0627 \u0627\u0644\u0623\u062C\u0631\u0627\u0645 \u0627\u0644\u0623\u0643\u062B\u0631 \u0625\u0634\u0631\u0627\u0642\u0627 \u0623\u0635\u063A\u0631 (\u0623\u0643\u062B\u0631 \u0633\u0644\u0628\u064A\u0629) \u0645\u0646 \u0627\u0644\u0623\u062C\u0631\u0627\u0645 \u0627\u0644\u0628\u0627\u0647\u062A\u0629 . \u0648\u0639\u0644\u0649 \u0633\u0628\u064A\u0644 \u0627\u0644\u0645\u0642\u0627\u0631\u0646\u0629\u060C \u0627\u0644\u0634\u0645\u0633 \u0635\u0641\u0631\u0627\u0621 \u0644\u062F\u064A\u0647\u0627 \u0645\u0624\u0634\u0631 B-5 \u0645\u0646 0.656 \u00B1 0.005\u060C \u0641\u064A \u062D\u064A\u0646 \u0623\u0646 \u0646\u062C\u0645 \u0631\u062C\u0644 \u0627\u0644\u062C\u0628\u0627\u0631 \u0644\u062F\u064A\u0647 B\u2013V \u0642\u064A\u0645\u062A\u0647 \u20130.03 (\u0642\u062F\u0631 B \u0647\u0648 0.09 \u0648 \u0642\u062F\u0631 V \u0647\u0648 0.12 ) \u0648 \u0628\u0627\u0644\u062D\u0633\u0627\u0628 B-V=-0.03. \u0644\u0642\u064A\u0627\u0633 \u0647\u0630\u0627 \u0627\u0644\u0645\u0624\u0634\u0631\u060C \u064A\u0644\u0627\u062D\u0638 \u062D\u062C\u0645 \u0627\u0644\u062C\u0631\u0645 \u062A\u0628\u0627\u0639\u0627 \u0645\u0646 \u062E\u0644\u0627\u0644 \u0627\u062B\u0646\u064A\u0646 \u0645\u0646 \u0627\u0644\u0645\u0631\u0634\u062D\u0627\u062A \u0645\u062E\u062A\u0644\u0641\u0629\u060C \u0645\u062B\u0644 U \u0648B\u060C \u0623\u0648 B \u0648 V\u060C \u062D\u064A\u062B U \u062D\u0633\u0627\u0633\u0629 \u0644\u0644\u0623\u0634\u0639\u0629 \u0641\u0648\u0642 \u0628\u0646\u0641\u0633\u062C\u064A\u0629 \u060C B \u062D\u0633\u0627\u0633 \u0644\u0644\u0636\u0648\u0621 \u0627\u0644\u0623\u0632\u0631\u0642\u060C \u0648 V \u062D\u0633\u0627\u0633\u0629 \u0644\u0644\u0639\u064A\u0627\u0646 (\u0623\u062E\u0636\u0631 \u0623\u0635\u0641\u0631) \u0648\u064A\u0637\u0644\u0642 \u0639\u0644\u0649 \u0647\u0630\u0647 \u0627\u0644\u0645\u062C\u0645\u0648\u0639\u0629 \u0645\u0631\u0634\u062D\u0627\u062A \u0627\u0644\u0646\u0637\u0627\u0642 \u0639\u0627\u0644\u064A \u0627\u0633\u0645 \u0646\u0638\u0627\u0645 \u0645\u0636\u0648\u0627\u0626\u064A. \u0648\u064A\u0633\u0645\u0649 \u0641\u0627\u0631\u0642 \u0645\u0642\u0627\u062F\u064A\u0631 \u0627\u0644\u0645\u0631\u0634\u062D\u0627\u062A \u0628\u0645\u0624\u0634\u0631 \u0627\u0644\u0644\u0648\u0646 B-V \u0623\u0648 U-B . \u0645\u0646 \u062D\u064A\u062B \u0627\u0644\u0645\u0628\u062F\u0623\u060C \u062F\u0631\u062C\u0629 \u062D\u0631\u0627\u0631\u0629 \u0627\u0644\u0646\u062C\u0645 \u064A\u0645\u0643\u0646 \u0623\u0646 \u062A\u062D\u0633\u0628 \u0645\u0628\u0627\u0634\u0631\u0629 \u0645\u0646 \u0627\u0644\u0645\u0624\u0634\u0631 B-V\u060C \u0648\u0647\u0646\u0627\u0643 \u0627\u0644\u0639\u062F\u064A\u062F \u0645\u0646 \u0627\u0644\u0635\u064A\u063A \u0644\u062D\u0633\u0627\u0628 \u062D\u0631\u0627\u0631\u0629 \u0627\u0644\u0623\u062C\u0631\u0627\u0645 \u0648\u064A\u0645\u0643\u0646 \u0627\u0644\u062D\u0635\u0648\u0644 \u0639\u0644\u0649 \u062A\u0642\u0631\u064A\u0628 \u062C\u064A\u062F \u0645\u0646 \u062E\u0644\u0627\u0644 \u0627\u0644\u0646\u0638\u0631 \u0625\u0644\u0649 \u0627\u0644\u0646\u062C\u0648\u0645 \u0639\u0644\u0649 \u0623\u0646\u0647\u0627 \u0623\u062C\u0633\u0627\u0645 \u0633\u0648\u062F\u0627\u0621\u060C \u0648\u0630\u0644\u0643 \u0628\u0627\u0633\u062A\u062E\u062F\u0627\u0645 \u0635\u064A\u063A\u0629 \u0628\u0627\u0644\u064A\u0633\u062A\u064A\u0631\u0648\u0633 \u0645\u0624\u0634\u0631 \u0627\u0644\u0644\u0648\u0646 \u064A\u0645\u0643\u0646 \u0623\u0646 \u064A\u0637\u0644\u0639\u0646\u0627 \u0639\u0644\u0649 \u0627\u0644\u0628\u0639\u062F \u0627\u0644\u062D\u0642\u064A\u0642\u064A \u0644\u0644\u062C\u0631\u0645 \u0628\u0627\u0633\u062A\u062E\u062F\u0627\u0645 \u062E\u0645\u0648\u062F \u0627\u0644\u0646\u062C\u0645 . \u0645\u062B\u0644\u0627 \u0627\u0644\u0646\u062C\u0648\u0645 \u0627\u0644\u0628\u0639\u064A\u062F\u0629 \u062A\u0643\u0648\u0646 \u0623\u0643\u062B\u0631 \u0627\u062D\u0645\u0631\u0627\u0631 . \u064A\u062A\u0645\u064A\u0632 \u0647\u0630\u0627 \u0627\u0644\u0627\u062D\u0645\u0631\u0627\u0631 \u0643\u0641\u0627\u0626\u0636 \u0644\u0648\u0646\u064A . \u0645\u0631\u0634\u062D\u0627\u062A \u0627\u0644\u0646\u0637\u0627\u0642 \u0639\u0627\u0644\u064A \u064A\u0633\u062A\u062E\u062F\u0645\u0647\u0627 \u0645\u0639\u0638\u0645 \u0639\u0644\u0645\u0627\u0621 \u0627\u0644\u0641\u0644\u0643 \u0627\u0644\u0628\u0635\u0631\u064A (\u0645\u0631\u0634\u062D \u0627\u0644\u0646\u0638\u0627\u0645 \u0627\u0644\u0645\u0636\u0648\u0627\u0626\u064A)\u060C \u062D\u064A\u062B \u064A\u0633\u062A\u0639\u0627\u0646 \u0628\u0645\u0631\u0634\u062D\u0627\u062A U\u060C B\u060C \u0648 V \u0648\u0643\u0645\u0627 \u0630\u0643\u0631 \u0633\u0644\u0641\u0627\u060C \u0645\u0631\u0634\u062D R \u064A\u0645\u0631\u0631 \u0627\u0644\u0636\u0648\u0621 \u0627\u0644\u0623\u062D\u0645\u0631\u060C \u0648 \u0645\u0631\u0634\u062D ( I )\u064A\u0645\u0631\u0631 \u0636\u0648\u0621 \u0627\u0644\u0623\u0634\u0639\u0629 \u062A\u062D\u062A \u0627\u0644\u062D\u0645\u0631\u0627\u0621. \u064A\u0633\u0645\u0649 \u0647\u0630\u0627 \u0628\u0646\u0638\u0627\u0645 Johnson-Cousins filter system \u060C \u0648 \u0627\u0644\u0630\u064A \u0633\u0645\u064A \u0639\u0644\u0649 \u0627\u0633\u0645 \u0645\u0646\u0634\u0626\u0647 . \u0642\u064A\u0627\u0633 \u0645\u0624\u0634\u0631\u0627\u062A \u0627\u0644\u0644\u0648\u0646 \u064A\u0643\u0648\u0646 \u0628\u0627\u062E\u062A\u064A\u0627\u0631 \u0632\u0648\u062C \u0645\u0646\u0627\u0633\u0628 \u0645\u0646 \u0627\u0644\u0645\u0631\u0634\u062D\u0627\u062A \u0627\u0639\u062A\u0645\u0627\u062F\u0627 \u0639\u0644\u0649 \u062F\u0631\u062C\u0629 \u062D\u0631\u0627\u0631\u0629 \u0648 \u0644\u0648\u0646 \u0627\u0644\u0643\u0627\u0626\u0646 :\u0645\u0631\u0634\u062D B-V \u0647\u064A \u0644\u0644\u0623\u062C\u0631\u0627\u0645 \u0645\u062A\u0648\u0633\u0637\u0629 \u0627\u0644\u062D\u0631\u0627\u0631\u0629\u060C U-V \u0644\u0644\u0623\u062C\u0631\u0627\u0645 \u0627\u0644\u0623\u0643\u062B\u0631 \u0633\u062E\u0648\u0646\u0629\u060C \u0648R-I \u0644\u0644\u0628\u0627\u0631\u062F."@ar , "En astronomie, l'indice de couleur d'un corps c\u00E9leste (\u00E9toile, ast\u00E9ro\u00EFde, ...) d\u00E9signe la diff\u00E9rence entre les magnitudes apparentes de ce corps obtenues dans deux bandes spectrales diff\u00E9rentes. Par exemple, l'indice de couleur B-V indique la diff\u00E9rence entre la magnitude apparente dans la bande spectrale B (c'est-\u00E0-dire bleue, autour de 442 nm) et la bande spectrale V (c'est-\u00E0-dire dans le visible, soit autour de 540 nm)."@fr , "\u041F\u043E\u043A\u0430\u0437\u0430\u0442\u0435\u043B\u044C \u0446\u0432\u0435\u0442\u0430 (\u0432 \u0430\u0441\u0442\u0440\u043E\u043D\u043E\u043C\u0438\u0438) \u2014 \u0440\u0430\u0437\u043D\u043E\u0441\u0442\u044C \u0437\u0432\u0451\u0437\u0434\u043D\u044B\u0445 \u0432\u0435\u043B\u0438\u0447\u0438\u043D \u0430\u0441\u0442\u0440\u043E\u043D\u043E\u043C\u0438\u0447\u0435\u0441\u043A\u043E\u0433\u043E \u043E\u0431\u044A\u0435\u043A\u0442\u0430, \u0438\u0437\u043C\u0435\u0440\u0435\u043D\u043D\u044B\u0445 \u0432 \u0434\u0432\u0443\u0445 \u0441\u043F\u0435\u043A\u0442\u0440\u0430\u043B\u044C\u043D\u044B\u0445 \u0434\u0438\u0430\u043F\u0430\u0437\u043E\u043D\u0430\u0445."@ru , "In astronomia, si dice indice di colore, o semplicemente colore, la differenza tra le magnitudini in due diversi filtri (o bande) di una stella."@it , "Barevn\u00FD index je v astronomii (CI) rozd\u00EDl magnitud hv\u011Bzdy ve vybran\u00FDch spektr\u00E1ln\u00EDch intervalech. Byl zaveden n\u011Bmeck\u00FDm fyzikem Karlem Schwarzschildem. P\u016Fvodn\u011B byl zaveden jako rozd\u00EDl mezi fotografickou a vizu\u00E1ln\u00ED hv\u011Bzdnou velikost\u00ED.V\u0161eobecn\u011B je to rozd\u00EDl mezi hv\u011Bzdn\u00FDmi velikostmi ve dvou r\u016Fzn\u00FDch spektr\u00E1ln\u00EDch oblastech, mezi hv\u011Bzdnou velikost\u00ED v oblasti krat\u0161\u00EDch vln a hv\u011Bzdnou velikost\u00ED v oblasti del\u0161\u00EDch vln. V syst\u00E9mu UBV je definovan\u00FD barevn\u00FD index (index U \u2013 B, index B \u2013 V) p\u0159i hv\u011Bzd\u011B spektr\u00E1ln\u00EDho typu A0 takto: B \u2013 V = U \u2013 B = 0; p\u0159i teplej\u0161\u00EDch hv\u011Bzd\u00E1ch je z\u00E1porn\u00FD, p\u0159i chladn\u011Bj\u0161\u00EDch kladn\u00FD."@cs , "\u041F\u043E\u043A\u0430\u0437\u043D\u0438\u0301\u043A \u043A\u043E\u0301\u043B\u044C\u043E\u0440\u0443 \u0430\u0431\u043E \u043A\u043E\u043B\u043E\u0440-\u0456\u043D\u0434\u0435\u043A\u0441 \u2014 \u0440\u0456\u0437\u043D\u0438\u0446\u044F \u043C\u0456\u0436 \u0437\u043E\u0440\u044F\u043D\u0438\u043C\u0438 \u0432\u0435\u043B\u0438\u0447\u0438\u043D\u0430\u043C\u0438 \u0437\u043E\u0440\u0456 \u0443 \u0434\u0432\u043E\u0445 \u0440\u0456\u0437\u043D\u0438\u0445 \u0441\u043F\u0435\u043A\u0442\u0440\u0430\u043B\u044C\u043D\u0438\u0445 \u0441\u043C\u0443\u0433\u0430\u0445, \u043F\u0435\u0440\u0448\u0430 \u0437 \u044F\u043A\u0438\u0445 \u043C\u0430\u0454 \u043C\u0435\u043D\u0448\u0443 \u0434\u043E\u0432\u0436\u0438\u043D\u0443 \u0445\u0432\u0438\u043B\u0456. \u041F\u043E\u043A\u0430\u0437\u043D\u0438\u043A \u0445\u0430\u0440\u0430\u043A\u0442\u0435\u0440\u0438\u0437\u0443\u0454 \u0442\u0435\u043C\u043F\u0435\u0440\u0430\u0442\u0443\u0440\u0443 \u0437\u043E\u0440\u0456, \u0442\u043E\u0431\u0442\u043E, \u0457\u0457 \u043A\u043E\u043B\u0456\u0440. \u0417\u0456 \u0437\u0431\u0456\u043B\u044C\u0448\u0435\u043D\u043D\u044F\u043C \u043F\u043E\u043A\u0430\u0437\u043D\u0438\u043A\u0430 \u043A\u043E\u043B\u044C\u043E\u0440\u0443 \u0442\u0435\u043C\u043F\u0435\u0440\u0430\u0442\u0443\u0440\u0430 \u0437\u043C\u0435\u043D\u0448\u0443\u0454\u0442\u044C\u0441\u044F."@uk , "Wska\u017Anik barwy \u2013 r\u00F3\u017Cnica wyra\u017Conych w wielko\u015Bciach gwiazdowych jasno\u015Bci gwiazdy w dwu barwach. Gwiazda emituje szerokie widmo promieniowania o nat\u0119\u017Ceniu zale\u017Cnym od d\u0142ugo\u015Bci fali, co powoduje, \u017Ce jasno\u015B\u0107 gwiazdy w r\u00F3\u017Cnych barwach jest r\u00F3\u017Cna. W systemie fotometrii tr\u00F3jbarwnej okre\u015Bla si\u0119 dwa wska\u017Aniki barwy: ultrafioletowy \u2013 r\u00F3wny r\u00F3\u017Cnicy jasno\u015Bci w barwach nadfioletowej i niebieskiej (U-B), oraz niebieski \u2013 r\u00F3wny r\u00F3\u017Cnicy jasno\u015Bci w barwach niebieskiej i \u017C\u00F3\u0142tej (B-V). W systemach fotometrii wielobarwnej okre\u015Bla si\u0119 odpowiednio wi\u0119cej wska\u017Anik\u00F3w. Wielko\u015B\u0107 wska\u017Anika barwy gwiazdy informuje o jej temperaturze, typie widmowym, a po\u015Brednio o wieku oraz absorpcji mi\u0119dzygwiazdowej. Do okre\u015Blenia stopnia absorpcji mi\u0119dzygwiazdowej stosuje si\u0119 wska\u017Anik E(B-V)."@pl , "In de astronomie is een kleurindex het verschil tussen twee kleurmagnitudes. Dit zijn getallen die op een logaritmische schaal de helderheid van een ster bij bepaalde gestandaardiseerde golflengtes aangeven. Omdat een dergelijk verschil eenduidig afhangt van de effectieve temperatuur van de ster is de kleurindex dus een maat voor die temperatuur. Het voordeel is dat een kleurindex in eerste benadering onafhankelijk is van de afstand van de ster. De afstand van een ster is doorgaans heel moeilijk te meten, tenzij voor sterren die in de directe omgeving van de zon staan waar de parallaxmethode kan gebruikt worden. Veel gebruikte kleurindexen zijn (U-B), (B-V), (V-R), (R-I) bij optische golflengtes (in het UBVRI fotometrische systeem), en (J-H) en (H-K) in het nabij infrarood. Wegens de definitie betekent een kleinere kleurindex een blauwere kleur: (B-V) van een O5V ster is \u22120,33 en van een M5V ster +1,40."@nl , "Dalam astronomi, indeks warna adalah sebuah nilai numerik sederhana yang menentukan warna suatu objek, dalam hal ini, sebuah bintang yang memberikan temperaturnya. Untuk mengukur indeks tersebut, seseorang mengamati sebuah objek melalui dua penyaring berbeda, seperti U dan B, atau B dan V, di mana U sensitif terhadap sinar ultraviolet, B sensitif terhadap cahaya biru, dan V sensitif terhadap cahaya nyata (hijau-kuning; lihat pula: ). Sekumpulan pita pelewat atau penyaring disebut sebuah . Perbedaan getaran yang ditemukan dalam penyaring ini disebut indeks warna U-B atau . Semakin kecil indeks warnanya, semakin banyak objek birunya (atau lebih panas). Sebaliknya, semakin besar indeks warnanya, semakin banyak objek merahnya (atau lebih dingin). Ini akibat dari skala getaran logaritmik, yang mana objek terang memiliki getaran lebih kecil (negatif) daripada objek remang. Sebagai perbandingan, Matahari kekuningan memiliki indeks B-V 0.656\u00B10.005, sementara Rigel kebiruan memiliki B-V -0.03 (getaran B-nya adalah 0.09 dan getaran V-nya adalah 0.12, B-V=-0.03). Indeks warna untuk objek jarak jauh biasanya dipengaruhi oleh \u2014i.e. mereka daripada bintang yang lebih dekat. Jumlah pemerahan ini dikenali dari , yang ditetapkan sebagai perbedaan antara Indeks warna pandang dan Indeks warna normal (atau Indeks warna intrinsik), indeks warna asli hipotesis terhadap bintang yang tidak dipengaruhi oleh kepunahan. Contohnya, dalam sistem fotometrik UBV kita bisa menuliskannya untuk : Penggunaan pita pelewat oleh astronom adalah penyaring , di mana penyaring U,B, dan V disebutkan di atas, penyaring R melewati cahaya merah, dan penyaring I melewati cahaya inframerah. ini kadang disebut , dinamai setelah penemu sistem ini (lihat catatan). Penyaring ini dijelaskan sebagai kombinasi penyaring kaca dan tabung pengganda foto. menjelaskan berbagai transmisi penyaring untuk sebuah detektor respon datar, yang menjumlahkan penjumlahan indeks warna. Untuk ketepatan, pasangan penyaring dipilih tergantung suhu warna objek: B-V untuk objek jarak menengah, U-V untuk objek panas, dan R-I untuk objek dingin."@in , "F\u00E4rgindex \u00E4r inom astronomin ett enkelt numeriskt uttryck som best\u00E4mmer f\u00E4rgen p\u00E5 ett objekt, vilket i fallet f\u00F6r en stj\u00E4rna ger dess temperatur. F\u00F6r att m\u00E4ta indexet observeras magnituden hos ett objekt med tv\u00E5 olika filter, till exempel U och B eller B och V, d\u00E4r U \u00E4r k\u00E4nsligt f\u00F6r ultraviolett ljus, B \u00E4r k\u00E4nsligt f\u00F6r bl\u00E5tt ljus och V \u00E4r k\u00E4nsligt f\u00F6r synligt (gr\u00F6n-gult) ljus. Skillnaden i magnitud mellan dessa filter kallas f\u00F6r U-B- respektive B-V-f\u00E4rgindex. Ett litet v\u00E4rde p\u00E5 f\u00E4rgindexet betyder att bl\u00E5tt ljus dominerar, och att objektet d\u00E4rf\u00F6r \u00E4r mycket varmt. P\u00E5 samma s\u00E4tt betyder ett h\u00F6gt f\u00E4rgindex att det r\u00F6r sig om ett r\u00F6dare och svalare objekt. Detta beror p\u00E5 den logaritmiska magnitudskalan, d\u00E4r ljusare objekt har l\u00E4gre (mer negativ) magnitud \u00E4n svarare objekt. Till exempel har den gulaktiga solen ett B-V-index p\u00E5 0,656\u00B10,005 medan den bl\u00E5aktiga Rigel har B-V -0,03 (dess B-magnitud \u00E4r 0,09 och dess V-magnitud \u00E4r 0,12, B-V=-0,03). Ett par fler exempel f\u00F6ljer i tabellen nedan. F\u00E4rgindex fr\u00E5n avl\u00E4gsna objekt p\u00E5verkas ofta av extinktion, vilket inneb\u00E4r att de \u00E4r r\u00F6dare \u00E4n n\u00E4rmare stj\u00E4rnor. M\u00E4ngden av denna f\u00F6r\u00E4ndring karakt\u00E4riseras av \"f\u00E4rg\u00F6verfl\u00F6det\", definierat som skillnaden mellan det observerade f\u00E4rgindexet och det normala f\u00E4rgindexet, det hypotetiskt sanna f\u00E4rgindexet hos stj\u00E4rnan utan extinktion. Till exempel kan vi i det UBV-fotometriska systemet skriva extinktionen som f\u00F6ljer f\u00F6r B-V: De passbandsfilter de flesta astronomer anv\u00E4nder kallas -filter, d\u00E4r U, B och V \u00E4r desamma som ovan, och d\u00E4r R l\u00E5ter r\u00F6tt ljus passera och I l\u00E5ter infrar\u00F6tt ljus passera. Detta kallas ibland efter skaparna av systemet (se referenserna). F\u00F6r b\u00E4sta precision v\u00E4ljs filter efter vilket objekt som studeras: U-V-filter anv\u00E4nds f\u00F6r heta objekt, B-V f\u00F6r medelvarma objekt och R-I f\u00F6r kallare objekt."@sv , "In astronomy, the color index is a simple numerical expression that determines the color of an object, which in the case of a star gives its temperature. The lower the color index, the more blue (or hotter) the object is. Conversely, the larger the color index, the more red (or cooler) the object is. This is a consequence of the logarithmic magnitude scale, in which brighter objects have smaller (more negative) magnitudes than dimmer ones. For comparison, the whitish Sun has a B\u2212V index of 0.656 \u00B1 0.005, whereas the bluish Rigel has a B\u2212V of \u22120.03 (its B magnitude is 0.09 and its V magnitude is 0.12, B\u2212V = \u22120.03). Traditionally, the color index uses Vega as a zero point. To measure the index, one observes the magnitude of an object successively through two different filters, such as U and B, or B and V, where U is sensitive to ultraviolet rays, B is sensitive to blue light, and V is sensitive to visible (green-yellow) light (see also: UBV system). The set of passbands or filters is called a photometric system. The difference in magnitudes found with these filters is called the U\u2212B or B\u2212V color index respectively. In principle, the temperature of a star can be calculated directly from the B\u2212V index, and there are several formulae to make this connection. A good approximation can be obtained by considering stars as black bodies, using Ballesteros' formula (also implemented in the PyAstronomy package for Python): Color indices of distant objects are usually affected by interstellar extinction, that is, they are redder than those of closer stars. The amount of reddening is characterized by color excess, defined as the difference between the observed color index and the normal color index (or intrinsic color index), the hypothetical true color index of the star, unaffected by extinction.For example, in the UBV photometric system we can write it for the B\u2212V color: The passbands most optical astronomers use are the UBVRI filters, where the U, B, and V filters are as mentioned above, the R filter passes red light, and the I filter passes infrared light. This system of filters is sometimes calledthe , named after the originators of the system (see references). These filters were specified as particular combinations of glass filters and photomultiplier tubes. specified a set of filter transmissions for a flat response detector, thus quantifying the calculation of the color indices. For precision, appropriate pairs of filters are chosen depending on the object's color temperature: B\u2212V are for mid-range objects, U\u2212V for hotter objects, and R\u2212I for cool ones."@en , "In der Astronomie ist der Farbindex (FI) eine urspr\u00FCnglich von Karl Schwarzschild (1873\u20131916) eingef\u00FChrte Ma\u00DFzahl f\u00FCr die Farbe von Sternen."@de ; dbo:wikiPageWikiLink dbr:Astronomer , dbr:Stellar_classification , dbr:Asteroid_color_indices , dbr:UBV_photometric_system , dbr:Passband , , dbr:Black_body , dbr:Kelvin , dbr:Infrared , dbr:Numerical_analysis , dbr:Vega , , dbr:Effective_temperature , dbr:Photomultiplier , dbr:Blue , , dbr:Logarithmic_scale , dbr:Alan_William_James_Cousins , dbr:Astronomical_filter , dbr:Red , dbr:Photometric_system , , dbr:Rigel , dbc:Photometric_systems , dbr:Star , dbr:Ultraviolet , dbr:Sun , , , dbr:Distant_object_color_indices , dbr:UBVRI , , dbc:Index_numbers , dbr:Astronomy , dbr:Temperature , dbr:William_Wilson_Morgan , dbr:UBV_system , dbr:Interstellar_reddening , dbr:Color , , . @prefix dbp: . @prefix dbt: . dbr:Color_index dbp:wikiPageUsesTemplate dbt:About , dbt:Portal_bar , dbt:Short_description , dbt:Reflist ; dbo:wikiPageRevisionID 1121449044 ; dbo:wikiPageExternalLink , , , . @prefix xsd: . dbr:Color_index dbo:wikiPageLength "6952"^^xsd:nonNegativeInteger ; dbo:wikiPageID 30871458 . @prefix owl: . @prefix dbpedia-fr: . dbr:Color_index owl:sameAs dbpedia-fr:Indice_de_couleur . @prefix yago-res: . dbr:Color_index owl:sameAs yago-res:Color_index , , . @prefix dbpedia-it: . dbr:Color_index owl:sameAs dbpedia-it:Indice_di_colore . @prefix dbpedia-ms: . dbr:Color_index owl:sameAs dbpedia-ms:Indeks_warna , . @prefix dbpedia-nl: . dbr:Color_index owl:sameAs dbpedia-nl:Kleurindex . @prefix dbpedia-af: . dbr:Color_index owl:sameAs dbpedia-af:Kleurindeks , , , . @prefix ns20: . dbr:Color_index owl:sameAs ns20:Spalvos_rodiklis . @prefix dbpedia-id: . dbr:Color_index owl:sameAs dbpedia-id:Indeks_warna , , , , , dbr:Color_index , , , , , . @prefix dbpedia-lb: . dbr:Color_index owl:sameAs dbpedia-lb:Faarfindex . @prefix ns23: . dbr:Color_index owl:sameAs ns23:Talatuntunan_ng_kulay . @prefix dbpedia-nn: . dbr:Color_index owl:sameAs dbpedia-nn:Fargeindeks , , . @prefix dbpedia-no: . dbr:Color_index owl:sameAs dbpedia-no:Fargeindeks , , . @prefix dbpedia-de: . dbr:Color_index owl:sameAs dbpedia-de:Farbindex , . @prefix wikidata: . dbr:Color_index owl:sameAs wikidata:Q271860 . @prefix dbpedia-sl: . dbr:Color_index owl:sameAs dbpedia-sl:Barvni_indeks , , , . @prefix prov: . dbr:Color_index prov:wasDerivedFrom ; foaf:isPrimaryTopicOf wikipedia-en:Color_index . dbr:Procyon dbo:wikiPageWikiLink dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index . dbr:Inuit_group dbo:wikiPageWikiLink dbr:Color_index . dbr:Charles_Morse_Huffer dbo:wikiPageWikiLink dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index . dbr:Spectral_slope dbo:wikiPageWikiLink dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index ; dbo:wikiPageDisambiguates dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index ; dbo:wikiPageRedirects dbr:Color_index . dbr:Trans-Neptunian_object dbo:wikiPageWikiLink dbr:Color_index . dbr:Sun dbo:wikiPageWikiLink dbr:Color_index ; dbp:label dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index . dbr:B-V_colour dbo:wikiPageWikiLink dbr:Color_index ; dbo:wikiPageRedirects dbr:Color_index . dbr:Colour_Index dbo:wikiPageWikiLink dbr:Color_index ; dbo:wikiPageRedirects dbr:Color_index . dbr:Color_indices dbo:wikiPageWikiLink dbr:Color_index ; dbo:wikiPageRedirects dbr:Color_index . dbr:HD_122563 dbo:wikiPageWikiLink dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index . dbo:wikiPageWikiLink dbr:Color_index ; dbo:wikiPageRedirects dbr:Color_index . dbr:Bessell dbo:wikiPageWikiLink dbr:Color_index . dbr:Colour_indices dbo:wikiPageWikiLink dbr:Color_index ; dbo:wikiPageRedirects dbr:Color_index .
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