HD 142
From Wikipedia, the free encyclopedia
| Observation data Epoch 2000 |
|
|---|---|
| Constellation (pronunciation) |
Phoenix |
| Right ascension | 00h 06m 19.1755s |
| Declination | -49° 04' 30.688" |
| Apparent magnitude (V) | 5.7 |
| Distance | 67.18 ly (20.6 pc) |
| Spectral type | G1IV |
| Other designations | |
HD 142 is a 6th magnitude star in the constellation Phoenix.
Contents |
[edit] Planets
[edit] HD 142 b
| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Orbital elements | ||
| Semimajor axis | (a) | 1.045±0.061 AU |
| Eccentricity | (e) | 0.26±0.18 |
| Orbital period | (P) | 350.3±3.6 d |
| Angular distance | (θ) | 48 mas |
| Longitude of periastron |
(ω) | 303° |
| Time of periastron | (T0) | 2,451,963 ±43 JD |
| Semi-amplitude | (K) | 32.9±4.7 m/s |
| Physical characteristics | ||
| Mass | (m) | >1.31±0.18 MJ |
| Discovery information | ||
| Discovery date | Oct 15, 2001 | |
| Discoverer(s) | Tinney et al. | |
| Detection method | Radial velocity | |
| Discovery status | Published | |
HD 142 b is a jovian planet orbiting about 1 AU from HD 142 . This puts it in the star's habitable zone.
[edit] References
- Tinney et al. (2002). "Two Extrasolar Planets from the Anglo-Australian Planet Search". The Astrophysical Journal 571 (1): 528 – 531. doi:.
- Butler et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646 (1): 505 – 522. doi:. (web Preprint)
[edit] External links
- HD 142 -- High proper-motion Star (SIMBAD Query Result)
- HD 142 (Extrasolar Visions)
- HD 142 b (Extrasolar Visions)
- Star: HD 142 (EPE)
 |
This star-related article is a stub. You can help Wikipedia by expanding it. |
 |
This extrasolar planet related article is a stub. You can help Wikipedia by expanding it. |
