HD 40979 b
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| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Parent star | ||
| Star | HD 40979 | |
| Constellation | Auriga | |
| Right ascension | (α) | 06h 04m 29.9431s |
| Declination | (δ) | +44° 15′ 37.599″ |
| Apparent magnitude | (mV) | 6.734 |
| Distance | 108.7 ly (33.33 pc) |
|
| Spectral type | F8V | |
| Orbital elements | ||
| Semimajor 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. | |
| Detection method | Radial velocity | |
| Discovery site | Lick and Keck Observatory Fairborn Observatory  USA |
|
| Discovery status | Published | |
| Database references | ||
| Extrasolar Planets Encyclopaedia |
data | |
| SIMBAD | 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.[1]
References [edit]
- ^ 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 et al.; Wright, J. T.; Marcy, G. W.; Fischer, D. A.; Vogt, S. S.; Tinney, C. G.; Jones, H. R. A.; Carter, B. D. 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.". The Astrophysical Journal 469: 755–770. arXiv:astro-ph/0703795. Bibcode:2007A&A...469..755M. doi:10.1051/0004-6361:20065883.
External links [edit]
- "HD 40979". Exoplanets.
- "Simulation HD 40979b". http://obspm.fr/. Retrieved 2008-08-20.
Coordinates: 
06h 04m 29.9431s, +44° 15′ 37.599″
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