Kepler-1649

Kepler-1649 is a red dwarf star of spectral type M5V with a radius 0.232 R_☉, a mass 0.198 M_☉, and a metallicity of -0.15 [Fe/H].^[4][6]

Kepler-1649

Artist's impression of exoplanet Kepler-1649c with its host star in the background.
Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Cygnus[1]
Right ascension	19h 30m 00.90060s[2]
Declination	41° 49′ 49.5183″[2]
Characteristics
Evolutionary stage	Main sequence[3]
Spectral type	M5V[4]
Apparent magnitude (B)	19.1[5]
Apparent magnitude (R)	16.6[5]
Apparent magnitude (J)	13.379±0.023[5]
Apparent magnitude (H)	12.852±0.020[5]
Apparent magnitude (K)	12.589±0.026[5]
Astrometry
Proper motion (μ)	RA: −135.831(42)[2] mas/yr Dec.: −99.524(53)[2] mas/yr
Parallax (π)	10.7808±0.0372 mas[2]
Distance	303 ± 1 ly (92.8 ± 0.3 pc)
Details[6]
Mass	0.1977±0.0051 M☉
Radius	0.2317±0.0049 R☉
Surface gravity (log g)	5.004±0.021 cgs
Temperature	3240±61 K
Metallicity [Fe/H]	−0.15±0.11 dex
Other designations
Kepler-1649, KOI-3138, KIC 6444896, 2MASS J19300092+4149496[5]
Database references
SIMBAD	data
Exoplanet Archive	data

Planetary system

Artist's impression and size comparison of the two planets in the Kepler-1649 system with Earth

Two confirmed planets orbit the star: Kepler-1649b and Kepler-1649c.^[3] Kepler-1649b is similar to Venus, whereas Kepler-1649c is a potentially habitable exoplanet similar to Earth.^[7][8]

The Kepler-1649 planetary system^[6]

Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	1.03 M🜨	0.0514±0.0028	8.689099±0.000025	—	89.150+0.110 −0.079°	1.017±0.051 R🜨
c	1.2 M🜨	0.0649±0.002[failed verification]	19.53527±0.00010	—	89.339±0.056°	1.06+0.15 −0.10 R🜨