Kepler-87

Kepler-87
Observation data; Epoch J2000.0 Equinox J2000.0
Constellation	Cygnus
Right ascension	19h 51m 40.0490s
Declination	+46° 57′ 54.425″
Apparent magnitude (V)	15
Characteristics
Spectral type	G4IV
Variable type	planetary transit
Astrometry
Proper motion (μ)	RA: −4.382(19) mas/yr ; Dec.: −0.821(20) mas/yr
Parallax (π)	0.7803±0.0154 mas
Distance	4,180 ± 80 ly ; (1,280 ± 30 pc)
Details
Mass	1.01 M☉
Radius	1.49669 R☉
Luminosity	0.3260445 L☉
Temperature	5692 ± 60.7121 K
Metallicity [Fe/H]	0.0562149±0.0587866 dex
Age	7.24+1.50; −1.56 years
Other designations
	KOI-1574, 2MASS J19514005+4657544, KIC 10028792, WISE J195140.04+465754.4
Database references
SIMBAD	data

Kepler-87 is a star slightly more massive than the Sun and it is nearing the end of its main-sequence period.^[3]

Quick Facts Observation data Epoch J2000.0 Equinox J2000.0, Constellation ...

Observation data Epoch J2000.0 Equinox J2000.0
Constellation	Cygnus^[1]
Right ascension	19^h 51^m 40.0490^s^[2]
Declination	+46° 57′ 54.425″^[2]
Apparent magnitude (V)	15
Characteristics
Spectral type	G4IV
Variable type	planetary transit
Astrometry

Proper motion (μ)	RA: −4.382(19) mas/yr^[2] Dec.: −0.821(20) mas/yr^[2]
Parallax (π)	0.7803±0.0154 mas^[2]
Distance	4,180 ± 80 ly (1,280 ± 30 pc)

Details

Mass	1.01 `M`_☉
Radius	1.49669 `R`_☉
Luminosity	0.3260445 `L`_☉
Temperature	5692 ± 60.7121 K
Metallicity [Fe/H]	0.0562149±0.0587866 dex
Age	7.24+1.50 −1.56 years

Other designations
KOI-1574, 2MASS J19514005+4657544, KIC 10028792, WISE J195140.04+465754.4
Database references
SIMBAD	data

Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	1.02+0.16 −0.16 $M$ _J	0.481+0.026 −0.028	114.73635+0.00015 −0.00015	0.036±0.009	—	—
c	0.02+0.003 −0.003 $M$ _J	0.676+0.037 −0.04	191.2318+0.0015 −0.0015	0.039±0.012	—	—
d (unconfirmed)	—	0.0628	5.83393857±2.241	0	—	—
e (unconfirmed)	—	0.0836	8.9772888±0.0001451	0	—	—

Planetary system