HD 148427 b
HD 148427 b is a gas giant extrasolar planet which orbits the K-type subgiant star HD 148427, located approximately 193 light years away in the constellation Ophiuchus. This planet has a minimum mass slightly less than Jupiter and orbits slightly closer to the star than Earth to the Sun. The orbital revolution takes 331.5 days or 0.9076 years.[1] This planet was discovered on August 12, 2009 by radial velocity method.
| Discovery | |
|---|---|
| Discovery date | August 12, 2009 |
| radial velocity | |
| Orbital characteristics | |
| Apastron | 1.08 AU (162,000,000 km) |
| Periastron | 0.78 AU (117,000,000 km) |
| 0.93 ± 0.01 AU (139,100,000 ± 1,500,000 km) | |
| Eccentricity | 0.16 ± 0.08 |
| 331.5 ± 3 d 0.9076 ± 0.0082 y | |
| 13991 ± 15 | |
| 277 ± 68 | |
| Star | HD 148427 |
References
- Fischer, Debra; et al. (2009). "Five planets and an independent confirmation of HD 196885 Ab from Lick Observatory". The Astrophysical Journal. 703 (2): 1545–1556. arXiv:0908.1596. Bibcode:2009ApJ...703.1545F. doi:10.1088/0004-637X/703/2/1545.
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