astro.wikisort.org - PlanetKepler-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.[citation needed]
Star in the constellation Cygnus
Kepler-182
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]
The Kepler-182 planetary system[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, Roc M.; Skrutskie, Michael F.; Van Dyk, Schuyler D.; Beichman, Charles A.; Carpenter, John M.; Chester, Thomas; Cambresy, Laurent; Evans, Tracey E.; Fowler, John W.; Gizis, John E.; Howard, Elizabeth V.; Huchra, John P.; Jarrett, Thomas H.; Kopan, Eugene L.; Kirkpatrick, J. Davy; Light, Robert M.; Marsh, Kenneth A.; McCallon, Howard L.; Schneider, Stephen E.; Stiening, Rae; Sykes, Matthew J.; Weinberg, Martin D.; Wheaton, William A.; Wheelock, Sherry L.; Zacarias, N. (2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". CDS/ADC Collection of Electronic Catalogues. 2246: II/246. 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.
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