Kepler-90

Kepler-90

Comparison of the Kepler-90 exoplanetary system with that of the Solar System (14 December 2017).
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]
Distance2,790 ± 30 ly
(855 ± 8 pc)
Details
Mass1.2±0.1[4] M☉
Radius1.2±0.1[4] R☉
Luminosity1.7[1] L☉
Surface gravity (log g)4.4[4] cgs
Temperature6,080+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
2MASS J18574403+4918185, KIC 11442793, KOI-351, Gaia DR2 2132193431285570304[5]
Database references
SIMBADdata
KICdata

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.

  1. ^ a b c d e f Cite error: The named reference dr3 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference ucac4 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference lamost was invoked but never defined (see the help page).
  4. ^ a b c d e f Cite error: The named reference Cabrera2013 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).