HD 40979
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| Observation data Epoch J2000.0 |
|
|---|---|
| Constellation (pronunciation) |
Auriga |
| Right ascension | 06h 04m 29.9431s |
| Declination | +44° 15' 37.599" |
| Apparent magnitude (V) | +6.746 |
| Distance | 109 ly (33 pc) |
| Spectral type | F8V |
| Other designations | |
|
HIP 28767
|
|
HD 40979 is a yellow-white dwarf star about 109 light-years away in the constellation Auriga.
As of 2002 there is one extrasolar planet orbiting HD 40979.
Contents |
[edit] Planet
[edit] HD 40979 b
| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Orbital elements | ||
| Semimajor axis | (a) | 0.855±0.049 AU |
| Eccentricity | (e) | 0.269±0.034 |
| Orbital period | (P) | 263.84±0.71 d |
| Angular distance | (θ) | 24 mas |
| Longitude 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 | ||
| Mass | (m) | >3.83±0.36 MJ |
| Discovery information | ||
| Discovery date | 2002 | |
| Discoverer(s) | Fischer et al. | |
| Detection method | Radial velocity | |
| Discovery status | Published | |
HD 40979 b is an extrasolar planet orbiting HD 40979. It is thought to be a large gas giant planet in the star's habitable zone with temperatures similar to Venus. It was discovered in 2002 by Debra Fischer.
[edit] References
- Fischer 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. doi:.
- Butler et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646: 505 – 522. doi:. (web Preprint)
[edit] External links
- HD 40979 (Extrasolar Visions)
- HD 40979 b (Extrasolar Visions)
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