Kepler-45
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cygnus[1] |
| Right ascension | 19h 31m 29.4967s[2] |
| Declination | +41° 03′ 51.356″[2] |
| Apparent magnitude (V) | 16.88[3] |
| Characteristics | |
| Spectral type | M1 V[4] |
| Astrometry | |
| Proper motion (μ) | RA: 4.635±0.071[2] mas/yr Dec.: −21.579±0.083[2] mas/yr |
| Parallax (π) | 2.5904 ± 0.0434[2] mas |
| Distance | 1,260 ± 20 ly (386 ± 6 pc) |
| Details | |
| Mass | 0.59 ± 0.06[5] M☉ |
| Radius | 0.55 ± 0.11[5] R☉ |
| Temperature | 3820 ± 90[5] K |
| Metallicity [Fe/H] | 0.13 ± 0.13[5] dex |
| Other designations | |
| Database references | |
| SIMBAD | data |
| KIC | data |
Kepler-45, formerly known as KOI-254, is a star in the northern constellation of Cygnus. It is located at the celestial coordinates: right ascension 19h 31m 29.495s, declination +41° 03′ 51.37″.[6] With an apparent visual magnitude of 16.88,[4] this star is too faint to be seen with the naked eye.
The star is exhibition a strong starspot activity, with 4.1±2.5% of its surface covered by starspots.[7]
Planetary system[]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 0.5505 MJ | 0.030 | 2.455239 | — | — | 11 R
|