2MASS J19383260+4603591
2MASS J19383260+4603591 (Also known as Kepler-451) is a binary star system with at least one known planet, Kepler-451b. The system comprises two stars, a subdwarf B-type star as well as a small red dwarf star.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cygnus |
| Right ascension | 19h 38m 32.61s[1] |
| Declination | 46h 03m 59.1s[1] |
| Characteristics | |
| Spectral type | sdBV/M |
| Details | |
| Mass | 0.48±0.03/0.120±0.010[1] [2] M☉ |
| Radius | 0.223±0.004/0.158±0.003[1] [2] R☉ |
| Temperature | 29564±106/null (A/B)[1][2] K |
| Age | 6±2 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
Planetary system
It has at least one confirmed exoplanet, 2MASS J19383260+4603591 b, discovered in 2015 by the Kepler spacecraft.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 604±32 M⊕ | 0.92±0.02 | 416±2 | — | — | — |
References
- "2MASS J19383260+4603591 b/Kepler-451 b CONFIRMED PLANET OVERVIEW PAGE". NASA Exoplanet Archive. Retrieved 2015-10-09.
- "2MASS J19383260+4603591 system". Open Exoplanet Catalog. Retrieved 2015-10-09.
- "Kepler-451". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-05-09.
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