Kepler-90
Star in the constellation Draco, orbited by eight planets / From Wikipedia, the free encyclopedia
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Kepler-90, also designated 2MASS J18574403+4918185, is a F-type star located about 2,790 light-years (855 pc) from Earth in the constellation of Draco. It is notable for possessing a planetary system that has the same number of observed planets as the Solar System.
Quick Facts Observation data Epoch J2000 Equinox J2000, Constellation ...
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Draco |
Right ascension | 18h 57m 44.03831s[1] |
Declination | +49° 18′ 18.4965″[1] |
Apparent magnitude (V) | 13.9[2] |
Characteristics | |
Spectral type | F9 IV/V[3] |
Astrometry | |
Radial velocity (Rv) | −15.54±2.91[1] km/s |
Proper motion (μ) | RA: −4.350(12) mas/yr[1] Dec.: −3.256(14) mas/yr[1] |
Parallax (π) | 1.1695 ± 0.0112 mas[1] |
Distance | 2,790 ± 30 ly (855 ± 8 pc) |
Details | |
Mass | 1.2±0.1[4] M☉ |
Radius | 1.2±0.1[4] R☉ |
Luminosity | 1.7[1] L☉ |
Surface gravity (log g) | 4.4[4] cgs |
Temperature | 6,080+260 −170[4] K |
Metallicity [Fe/H] | −0.12±0.18[4] dex |
Rotational velocity (v sin i) | 4.6±2.1[4] km/s |
Other designations | |
Database references | |
SIMBAD | data |
KIC | data |
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