Kepler-371

Kepler-371 (also known as KOI-2194 or KIC 3548044) is a star some 2,680 ly away from the Earth.^[2] It hosts a multi planetary system consisting of 2 confirmed Super-Earths, as well as 1 unconfirmed Near-Earth sized exoplanet in its habitable zone.^[9]

The Kepler-371 planetary system

Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	—	0.2	34.763278±0.000351	0	89.95°	1.89 R🜨
c	—	0.313	67.968015	0	89.95°	1.78 R🜨
d (unconfirmed)	—	—	—	—	—	—

Kepler-371

Observation data Epoch J2000      Equinox J2000
Constellation	Cygnus[1]
Right ascension	19h 29m 18.3513s[2]
Declination	+38° 39′ 27.273″[2]
Apparent magnitude (V)	14.0[3]
Characteristics
Evolutionary stage	subgiant[2]
Spectral type	F[4]
Astrometry
Proper motion (μ)	RA: 3.560(12) mas/yr[2] Dec.: −7.358(14) mas/yr[2]
Parallax (π)	1.2177±0.0121 mas[2]
Distance	2,680 ± 30 ly (821 ± 8 pc)
Details
Mass	0.93±0.05[5] M☉
Radius	1.3[6] R☉
Luminosity	1.6[6] L☉
Surface gravity (log g)	4.20[6] cgs
Temperature	5,759+70 −87[5] K
Metallicity [Fe/H]	−0.25[6] dex
Rotation	149 days[7]
Rotational velocity (v sin i)	2.0[7] km/s
Age	5.5[5] Gyr
Other designations
Gaia DR2 2052702348375966208, KOI-2194, KIC 3548044, 2MASS J19291835+3839273[8]
Database references
SIMBAD	data
Exoplanet Archive	data