HD 180902
| Observation data Epoch Equinox | |
|---|---|
| Constellation | Sagittarius |
| Right ascension | 19h 19m 18.0s |
| Declination | −23° 33′ 29″ |
| Characteristics | |
| Details | |
| Mass | 1.52 ± 0.11 M☉ |
| Radius | 4.1 ± 0.1 R☉ |
| Temperature | 5030 ± 44 K |
| Metallicity [Fe/H] | 0.04 ± 0.03 dex |
| Age | 2.8 ± 0.7 Gyr years |
| Database references | |
HD 180902 is a K-type star HD 180902 approximately 359 light years away in the constellation Sagittarius. It has one planet, HD 180902 b.[1]
Planetary system
The HD 180902 system is known to have one planet.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 1.6 ± 0.2 MJ | 1.39 ± 0.04 AU | 479 ± 13 | 0.09 ± 0.11 | — | — |
References
- ↑ Johnson, John Asher; et al. (2010). "Retired A Stars and Their Companions IV. Seven Jovian Exoplanets from Keck Observatory". Publications of the Astronomical Society of the Pacific. 122 (892): 701–711. arXiv:1003.3445
[astro-ph.EP]. Bibcode:2010PASP..122..701J. doi:10.1086/653809. - ↑ exoplanet.eu. "Planet HD 180902 b". Retrieved 2013-06-03.
This article is issued from Wikipedia - version of the 8/7/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.