Kepler-78
Kepler-78 (formerly known as KIC 8435766) is a 12th magnitude star 407 light-years (125 parsecs) away in the constellation Cygnus. Initially classified as an eclipsing binary with orbital period 0.710015 days, it was later re-classified as a single star with significant interaction between star magnetosphere and close-in planet. The radius of the star is of about 74% of the Sun, and the effective temperature is about 5100 K.
Artist's impression of the planet Kepler-78b around Kepler-78 | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cygnus |
| Right ascension | 19h 34m 58.01374s |
| Declination | +44° 26′ 53.9602″ |
| Apparent magnitude (V) | 11.72 |
| Characteristics | |
| Spectral type | late G |
| Astrometry | |
| Proper motion (μ) | RA: 38.195 mas/yr Dec.: −16.309 mas/yr |
| Parallax (π) | 8.0085 ± 0.0104 mas |
| Distance | 407.3 ± 0.5 ly (124.9 ± 0.2 pc) |
| Details | |
| Mass | 0.779+0.032 −0.046 M☉ |
| Radius | 0.7475+0.0077 −0.0078 R☉ |
| Temperature | 5058±50 K |
| Metallicity [Fe/H] | −0.18±0.08 dex |
| Other designations | |
| Database references | |
| SIMBAD | data |
| KIC | data |
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