HD 40979 b is an extrasolar planet orbiting the star HD 40979, was detected from the Lick and Keck observatories and photometric observations at Fairborn Observatory reveal low-amplitude brightness variations in HD 40979. It is thought to be a large gas giant planet. It was discovered in 2002 by Debra Fischer.[1]
| Discovery | |
|---|---|
| Discovered by | Fischer et al.[1] |
| Discovery site | Lick and Keck Observatory Fairborn Observatory  USA |
| Discovery date | 13 June 2002 |
| Radial velocity | |
| Orbital characteristics | |
| Apastron | 1.085 AU (162,300,000 km) |
| Periastron | 0.625 AU (93,500,000 km) |
| 0.855 ± 0.049 AU (127,900,000 ± 7,300,000 km) | |
| Eccentricity | 0.269 ± 0.034 |
| 263.84 ± 0.71 d 0.72 y | |
Average orbital speed | 35.5 |
| 2,451,748.1 ± 8.6 | |
| 318 ± 10 | |
| Semi-amplitude | 112 ± 5 |
| Star | HD 40979 |
References
edit- ^ a b Fischer, Debra A.; et al. (2003). "A Planetary Companion to HD 40979 and Additional Planets Orbiting HD 12661 and HD 38529". The Astrophysical Journal. 586 (2): 1394–1408. Bibcode:2003ApJ...586.1394F. doi:10.1086/367889.
- Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701. S2CID 119067572.
- MUGRAUER M.; NEUHAEUSER R.; MAZEH T. (2007). "The multiplicity of exoplanet host stars. Spectroscopic confirmation of the companions GJ 3021B and HD 27442B, one new planet host triple-star system, and global statistics". Astronomy and Astrophysics. 469 (2): 755–770. arXiv:astro-ph/0703795. Bibcode:2007A&A...469..755M. doi:10.1051/0004-6361:20065883. S2CID 204926851.
External links
edit- "HD 40979". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2008-10-29.
- "Simulation HD 40979b". obspm.fr/. Archived from the original on 2007-12-03. Retrieved 2008-08-20.
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