Kepler-45
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cygnus |
| Right ascension | 19h 31m 29.4966s |
| Declination | +41° 03′ 51.356″ |
| Apparent magnitude (V) | 16.88 |
| Characteristics | |
| Spectral type | M1 V |
| Astrometry | |
| Proper motion (μ) | RA: 4.646(36) mas/yr Dec.: −21.589(36) mas/yr |
| Parallax (π) | 2.5984±0.0331 mas |
| Distance | 1,260 ± 20 ly (385 ± 5 pc) |
| Details | |
| Mass | 0.59 ± 0.06 M☉ |
| Radius | 0.55 ± 0.11 R☉ |
| Temperature | 3820 ± 90 K |
| Metallicity [Fe/H] | 0.13 ± 0.13 dex |
| Other designations | |
| Gaia DR2 2053562475706063744, Kepler-45, KOI-254, KIC 5794240, 2MASS J19312949+4103513 | |
| 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″. With an apparent visual magnitude of 16.88, this star is too faint to be seen with the naked eye.
The star is exhibiting strong starspot activity, with 4.1±2.5% of its surface covered by starspots.