HD 63454 b
| Exoplanet | List of exoplanets | |
|---|---|---|
| [[Image:|300px]] | ||
| Parent star | ||
| Star | HD 63454 | |
| Constellation | Chamaeleon | |
| Right ascension | (α) | 07h 39m 21.8511s |
| Declination | (δ) | –78° 16′ 44.300″ |
| Distance | 116.7 ly (35.80 pc) | |
| Spectral type | K4V | |
| Orbital elements | ||
| Semi-major axis | (a) | 0.036 AU |
| Periastron | (q) | 0.036 AU |
| Apastron | (Q) | 0.036 AU |
| Eccentricity | (e) | 0 |
| Orbital period | (P) | 2.81782±0.000095 d |
| Orbital speed | (υ) | 140 km/s |
| Time of periastron | (T0) | 2,453,111.129±0.005 JD |
| Semi-amplitude | (K) | 64.3 m/s |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 0.38 MJ |
| Discovery information | ||
| Discovery date | 14 February 2005 | |
| Discoverer(s) | Moutou, Mayor, Bouchy et al. | |
| Discovery method | Radial velocity | |
| Discovery site |  Chile | |
| Discovery status | Published | |
HD 63454 b is an extrasolar planet located approximately 117 light-years away in the constellation of Chamaeleon, orbiting the star HD 63454. It is at least 38% as massive as Jupiter, and orbits very close to its host star, even closer than the famous 51 Pegasi b. Its close orbit means it belongs to a class of exoplanets known as hot Jupiters. This planet has one of the least eccentric orbits.[1]
References
- ↑ Moutou, C.; et al. (2005). "The HARPS search for southern extra-solar planets IV. Three close-in planets around HD 2638, HD 27894 and HD 63454". Astronomy and Astrophysics. 439 (1): 367–373. arXiv:1411.7048. Bibcode:2005A&A...439..367M. doi:10.1051/0004-6361:20052826.
External links
- "Notes for planet HD 63454 b". The Extrasolar Planets Encyclopaedia. Retrieved 2008-08-22.
- "HD 63454". Exoplanets. Retrieved 2008-08-22.
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