Kepler-182
Kepler-182 is a star in the constellation of Cygnus. In the night sky, it is located at right ascension 19h 21m 39.2s and declination +38° 20′ 38″.[1] The star is notable for having two planets in the circumstellar habitable zone.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cygnus |
| Right ascension | 19h 19m 19.227s[1] |
| Declination | +50° 35′ 10.49″[1] |
| Characteristics | |
| Astrometry | |
| Proper motion (μ) | RA: -7.648 mas/yr Dec.: -7.218 mas/yr |
| Parallax (π) | 0.6166 ± 0.0209 mas |
| Distance | 5,300 ± 200 ly (1,620 ± 50 pc) |
| Details[2] | |
| Radius | 1.146 ± 0.512 R☉ |
| Surface gravity (log g) | 4.401 ± 0.300 cgs |
| Temperature | 6250 ± 200 K |
| Metallicity [Fe/H] | 0.08 ± 0.50 dex |
| Other designations | |
| Database references | |
| SIMBAD | data |
| KIC | data |
It has a radius of 1.146 R☉ and an effective temperature of 6,250 K.[2]
Two exoplanets orbit it. The first, Kepler-182b, has a radius of 0.23 RJ and orbits the parent star every 9.8 days. The second, Kepler-182c, has a radius of 0.306 RJ and orbits the parent star every 20.7 days.[2]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | — | 0.096 | 9.825792 ± 0.000062 | — | — | 0.23 ± 0.105 RJ |
| c | — | 0.157 | 20.684342 ± 0.000097 | — | — | 0.306 ± 0.136 RJ |
References
- Cutri, R. M.; et al. (2003). "2MASS All-Sky Catalog of Point Sources". VizieR On-line Data Catalog. Bibcode:2003yCat.2246....0C.
- Rowe, Jason F.; et al. (20 March 2014). "Validation of Kepler's Multiple Planet Candidates. III. Light Curve Analysis and Announcement of Hundreds of New Multi-planet Systems". The Astrophysical Journal. 784 (1). arXiv:1402.6534. Bibcode:2014ApJ...784...45R. doi:10.1088/0004-637X/784/1/45. 45.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.