Kepler-24 is a star in the northern constellation of Lyra. It is located at the celestial coordinates: Right Ascension 19h 21m 39.0s, Declination +38° 20′ 37″.[6] With an apparent visual magnitude of 15.5,[3] this star is too faint to be seen with the naked eye.
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Lyra[1] |
Right ascension | 19h 21m 39.1858s[2] |
Declination | +38° 20′ 37.450″[2] |
Apparent magnitude (V) | 15.5[3] |
Characteristics | |
Spectral type | G5[4] |
Astrometry | |
Proper motion (μ) | RA: −2.227±0.044[2] mas/yr Dec.: −1.825±0.042[2] mas/yr |
Parallax (π) | 0.8361 ± 0.0238 mas[2] |
Distance | 3,900 ± 100 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 | |
Database references | |
SIMBAD | data |
KIC | data |
Two planetary candidates b and c were discovered in 2011, and were confirmed in 2012 together with d and e.[7]
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🜨 |