HD 212301 b
| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
 | ||
| Parent star | ||
| Star | HD 212301 | |
| Constellation | Octans | |
| Right ascension | (α) | 22h 27m 30.9195s |
| Declination | (δ) | –77° 43′ 04.521″ |
| Apparent magnitude | (mV) | 7.77 |
| Distance | 171.93 ly (52.71 pc) | |
| Spectral type | F8V | |
| Orbital elements | ||
| Semimajor axis | (a) | 0.0341 AU (5.10 Gm) |
| Periastron | (q) | 0.0341 AU (5.10 Gm) |
| Apastron | (Q) | 0.0341 AU (5.10 Gm) |
| Eccentricity | (e) | 0 |
| Orbital period | (P) | 2.24572 ± 28 d |
| (53.897 h) | ||
| Orbital speed | (υ) | 166 km/s |
| Argument of periastron |
(ω) | 0° |
| Time of periastron | (T0) | 2453549.195 ± 0.004 JD |
| Semi-amplitude | (K) | 59.5 ± 0.7 m/s |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 0.396 MJ |
| Discovery information | ||
| Discovery date | August 22, 2005 | |
| Discoverer(s) | Lo Curto et al. | |
| Discovery method | Doppler spectroscopy | |
| Discovery site | La Silla Observatory | |
| Discovery status | Published | |
HD 212301 b is an extrasolar planet located approximately 172 light-years (53 parsecs) away in the constellation of Octans, orbiting the star HD 212301. It has an orbital period of 2.25 Earth days. The orbital distance is 0.0341 astronomical units or 5.10 gigameters.[1]
On August 22, 2005, taking place in ESO La Silla Observatory in Chile, the planet was discovered by Lo Curto who used the HARPS spectrometer.
See also
References
- ↑ Lo Curto, G. et al. (2006). "The HARPS search for southern extra-solar planets VII. A very hot Jupiter orbiting HD 212301". Astronomy & Astrophysics 451 (1): 345–350. Bibcode:2006A&A...451..345L. doi:10.1051/0004-6361:20054083.
External links
- "Notes for planet HD 212301 b". The Extrasolar Planets Encyclopaedia. Retrieved 2008-08-29.
- "HD 212301". Exoplanets. Retrieved 2008-08-29.
Coordinates: 
22h 27m 30.9195s, −77° 43′ 04.521″