Kepler-28
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cygnus |
| Right ascension | 19h 28m 32.8905s |
| Declination | +42° 25′ 45.959″ |
| Apparent magnitude (V) | 15.036 |
| Characteristics | |
| Spectral type | M0V |
| Astrometry | |
| Radial velocity (Rv) | −26.99±6.00 km/s |
| Proper motion (μ) | RA: −0.463(21) mas/yr Dec.: 11.691(21) mas/yr |
| Parallax (π) | 2.2537±0.0185 mas |
| Distance | 1,450 ± 10 ly (444 ± 4 pc) |
| Details | |
| Mass | 0.684±0.026 M☉ |
| Radius | 0.664±0.013 R☉ |
| Temperature | 4499±75 K |
| Metallicity [Fe/H] | −0.17±0.11 dex |
| Rotation | 17.951±0.016 days |
| Rotational velocity (v sin i) | 0.6 km/s |
| Age | 2.2 Gyr |
| Other designations | |
| KOI-870, KIC 6949607, 2MASS J19283288+4225459 | |
| Database references | |
| SIMBAD | data |
| KIC | data |
Kepler-28 is an M-type main-sequence star about 1,450 light-years (440 parsecs) away in the northern constellation of Cygnus. With an apparent visual magnitude of 15.036, this star is too faint to be seen with the naked eye. It is orbited by two exoplanets.