Kepler-24

Kepler-24 is a star in the northern constellation of Lyra. It is located at the celestial coordinates: Right Ascension 19^h 21^m 39.1857^s, Declination +38° 20′ 37.450″.^[2] With an apparent visual magnitude of 15.5,^[3] this star is too faint to be seen with the naked eye.

Kepler-24

Observation data Epoch J2000      Equinox J2000
Constellation	Lyra[1]
Right ascension	19h 21m 39.1857s[2]
Declination	+38° 20′ 37.450″[2]
Apparent magnitude (V)	15.5[3]
Characteristics
Spectral type	G5[4]
Astrometry
Proper motion (μ)	RA: −2.153(22) mas/yr[2] Dec.: −1.822(21) mas/yr[2]
Parallax (π)	0.8312±0.0186 mas[2]
Distance	3,920 ± 90 ly (1,200 ± 30 pc)
Details
Mass	1.11[3] M☉
Radius	1.07 ± 0.16[3] R☉
Luminosity	0.79 ± 0.04[3] L☉
Temperature	5800 ± 200[3] K
Metallicity [Fe/H]	–0.24 ± 0.40[3] dex
Rotation	10.080±0.154 days[5]
Other designations
KOI-1102, KIC 3231341, 2MASS J19213918+3820375, Gaia DR2 2052823535171095296
Database references
SIMBAD	data
KIC	data

Planetary system

Two planetary candidates b and c were discovered in 2011, and were confirmed in 2012 together with d and e.^[6]

The Kepler-24 planetary system^[4]

Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
d	—	0.051	4.244384	—	—	1.67 R🜨
b	< 1.6 MJ	0.106	8.1453	—	—	2.4 R🜨
c	< 1.6 MJ	0.068	12.3335	—	—	2.8 R🜨
e	—	0.138	18.998355	—	—	2.78 R🜨