HD 40979 b
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | HD 40979 | |
| Constellation | Auriga | |
| Right ascension | (α) | 06h 04m 29.942s[1] |
| Declination | (δ) | +44° 15′ 37.59″[1] |
| Apparent magnitude | (mV) | 6.734 |
| Distance | 108 ± 2[1] ly (33.1 ± 0.5[1] pc) | |
| Spectral type | F8V | |
| Orbital elements | ||
| Semi-major axis | (a) | 0.855 ± 0.049 AU (127.9 Gm) |
| Periastron | (q) | 0.625 AU (93.5 Gm) |
| Apastron | (Q) | 1.085 AU (162.3 Gm) |
| Eccentricity | (e) | 0.269 ± 0.034 |
| Orbital period | (P) | 263.84 ± 0.71 d (0.72 y) |
| Orbital speed | (υ) | 35.5 km/s |
| Argument of periastron |
(ω) | 318 ± 10° |
| Time of periastron | (T0) | 2,451,748.1 ± 8.6 JD |
| Semi-amplitude | (K) | 112 ± 5 m/s |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 3.83 ± 0.36 MJ (1217 M⊕) |
| Discovery information | ||
| Discovery date | 13 June 2002 | |
| Discoverer(s) | Fischer et al.[2] | |
| Discovery method | Radial velocity | |
| Discovery site | Lick and Keck Observatory Fairborn Observatory  | |
| Discovery status | Published[2] | |
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
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.[2]
References
- 1 2 3 4 van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
- 1 2 3 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.
- 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: 755–770. arXiv:astro-ph/0703795. Bibcode:2007A&A...469..755M. doi:10.1051/0004-6361:20065883.
External links
- "HD 40979". Exoplanets.
- "Simulation HD 40979b". obspm.fr/. Retrieved 2008-08-20.
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