HD 72659
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| Observation data Epoch J2000.0 |
|
|---|---|
| Constellation (pronunciation) |
Hydra |
| Right ascension | 08h 34m 03.19s |
| Declination | −01° 34′ 05.58″ |
| Apparent magnitude (V) | 7.48 |
| Absolute magnitude (V) | 3.93 |
| Distance | 168 ly (51.4 pc) |
| Spectral type | G0V |
| Other designations | |
HD 72659 is a yellow dwarf star in the Hydra constellation. The apparent magnitude is +7.48 and the distance is 168 light years.
[edit] HD 72659 b
| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Orbital elements | ||
| Semimajor axis | (a) | 4.77 AU |
| Eccentricity | (e) | 0.269±0.038 |
| Orbital period | (P) | 3630±230 d |
| Angular distance | (θ) | 92.8 mas |
| Longitude of periastron |
(ω) | 258±13° |
| Time of periastron | (T0) | 2451678±89 JD |
| Semi-amplitude | (K) | 42.5±1.2 m/s |
| Physical characteristics | ||
| Mass | (m) | >3.30±0.18 MJ |
| Discovery information | ||
| Discovery date | 2002 | |
| Discoverer(s) | Butler, Marcy, Vogt, and Fischer |
|
| Detection method | Doppler spectroscopy | |
| Discovery status | Published | |
HD 72659 b is a superjovian planet orbiting at 4.77 AU from the star taking 3630 days to orbit. The orbital distance range from 3.49 AU to 6.05 AU with orbital eccentricity of 0.269.
[edit] References
- Butler et al. (2003). "Seven New Keck Planets Orbiting G and K Dwarfs". The Astrophysical Journal 582 (1): 455 – 466. doi:.
[edit] External links
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