Kepler-24 is a star in the northern constellationofLyra. It is located at the celestial coordinates: Right Ascension 19h21m 39.1857s, 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.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Lyra[1] |
| Right ascension | 19h21m 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 |
Two planetary candidates b and c were discovered in 2011, and were confirmed in 2012 together with d and e.[6]
| 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🜨 |
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