Kepler-48

Kepler-48
Observation data; Epoch J2000 Equinox J2000
Constellation	Cygnus
Right ascension	19h 56m 33.416s
Declination	+40° 56′ 56.50″
Apparent magnitude (V)	13.174±0.103
Characteristics
Evolutionary stage	subgiant
Spectral type	K0V
Astrometry
Radial velocity (Rv)	−13.34±2.12 km/s
Proper motion (μ)	RA: 13.215(12) mas/yr ; Dec.: −20.410(15) mas/yr
Parallax (π)	3.2283±0.0116 mas
Distance	1,010 ± 4 ly ; (310 ± 1 pc)
Details
Mass	0.916 M☉
Radius	0.897 R☉
Luminosity	0.5137 L☉
Surface gravity (log g)	4.47363 cgs
Temperature	5,160 K
Metallicity [Fe/H]	0.2±0.1 dex
Rotational velocity (v sin i)	0.5 km/s
Age	3.14 Gyr
Other designations
	Kepler-48, KOI-148, KIC 5735762, 2MASS J19563341+4056564
Database references
SIMBAD	data
Exoplanet Archive	data
KIC	data

Kepler-48, previously designated KOI-148, is a subgiant star in the constellation of Cygnus, about 1,000 light years away.

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

Observation data Epoch J2000 Equinox J2000
Constellation	Cygnus^[1]
Right ascension	19^h 56^m 33.416^s^[2]
Declination	+40° 56′ 56.50″^[2]
Apparent magnitude (V)	13.174±0.103^[3]
Characteristics
Evolutionary stage	subgiant^[2]^[4]
Spectral type	K0V^[5]
Astrometry

Radial velocity (R_v)	−13.34±2.12^[2] km/s
Proper motion (μ)	RA: 13.215(12) mas/yr^[2] Dec.: −20.410(15) mas/yr^[2]
Parallax (π)	3.2283±0.0116 mas^[2]
Distance	1,010 ± 4 ly (310 ± 1 pc)

Details

Mass	0.916^[6] `M`_☉
Radius	0.897^[7] `R`_☉
Luminosity	0.5137^[8] `L`_☉
Surface gravity (log g)	4.47363^[7] cgs
Temperature	5,160^[7] K
Metallicity [Fe/H]	0.2±0.1^[8] dex
Rotational velocity (v sin i)	0.5^[9] km/s
Age	3.14^[9] Gyr

Other designations
Kepler-48, KOI-148, KIC 5735762, 2MASS J19563341+4056564^[10]
Database references
SIMBAD	data
Exoplanet Archive	data
KIC	data

Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	6.8±2.9 $M$ _🜨	0.054	4.78	—	—	1.85±0.09 $R$ _🜨
c	11.1±3.2 $M$ _🜨	0.086	9.67	—	—	2.56±0.07 $R$ _🜨
d	9±6 $M$ _🜨	0.23	42.9	—	—	1.98±0.07 $R$ _🜨
e	2.16±0.07 $M$ _J	1.9	1001	0.003±0.028	—	—
f	0.93±0.29 $M$ _J	5.7	5205	0.01±0.15	—	—

Planetary System