| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cygnus |
| Right ascension | 19h 47m 50.4746s[1] |
| Declination | +46° 02′ 03.500″[1] |
| Apparent magnitude (V) | 14.3[2] |
| Characteristics | |
| Spectral type | F7V[3] |
| Astrometry | |
| Proper motion (μ) | RA: 3.894(18) mas/yr[1] Dec.: −2.345(17) mas/yr[1] |
| Parallax (π) | 0.9316 ± 0.0139 mas[1] |
| Distance | 3,500 ± 50 ly (1,070 ± 20 pc) |
| Details[3] | |
| Mass | 1.29+0.06 −0.07 M☉ |
| Radius | 1.40±0.10 R☉ |
| Surface gravity (log g) | 4.25±0.06 cgs |
| Temperature | 6350±100 K |
| Metallicity [Fe/H] | 0.10±0.14 dex |
| Rotation | 4.464±0.013 days[4] |
| Rotational velocity (v sin i) | 16±2.5 km/s |
| Age | 2.1+0.8 −0.9 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
| KIC | data |
Kepler-39 (2MASS J19475046+4602034) is an F-type main sequence star located in the constellation Cygnus. It is located about 3,500 light-years (1,070 parsecs) away.[1] One known substellar companion orbits it, Kepler-39b.[5]
Gaia DR3 was invoked but never defined (see the help page).EPE was invoked but never defined (see the help page).Bonomo2015 was invoked but never defined (see the help page).McQuillan2013 was invoked but never defined (see the help page).Bouchy2011 was invoked but never defined (see the help page).