Planet Kepler-21 b
| Name | Kepler-21 b | ||
| Planet Status | Confirmed | ||
| Discovered in | 2012 | ||
| Mass | 0.01598 ( -0.00541 +0.00541 ) MJ |  |
|
| Mass*sin(i) | — | ||
| Semi-Major Axis | 0.042717 ( -0.0 +0.0 ) AU | |
|
| Orbital Period | 2.78578 (± 3e-05) day | |
+ |
| Eccentricity | 0.02 ( -0.02 +0.1 ) | |
+ |
| ω | -15.0 ( -79.0 +79.0 ) deg | |
|
| Tperi | 2456797.9 (± 0.7) JD | |
|
| Radius | 0.146 ( -0.001 +0.002 ) RJ | |
|
| Inclination | 83.2 ( -0.26 +0.28 ) deg | |
|
| Update | 2021-02-05 | ||
| Detection Method | Primary Transit | ||
| Mass Detection Method | — | ||
| Radius Detection Method | Primary Transit | ||
| Primary transit | 2455093.83716 ( -0.00085 +0.00062 ) JD | |
+ |
| Secondary transit | — | ||
| λ | — | ||
| Impact Parameter b | 0.584 ( -0.02 +0.018 ) | |
|
| Time Vr=0 | — | ||
| Velocity Semiamplitude K | 1.99 (± 0.65) m/s | |
|
| Calculated temperature | 2025.0 K | |
|
| Measured temperature | — | ||
| Hottest point longitude | — | ||
| Geometric albedo | — | ||
| Surface gravity log(g/gH) | — | ||
| Alternate Names | Kepler-21 b, 2MASS J19092683+3842505 b, BD+38 3455 b, HD 179070 b, HIP 94112 b, K00975.01, KIC 3632418 b, KOI-975 b, KOI-975.01, Kepler-21 A b, SAO 67891 b, TYC 3120-00963-1 b, WISE J190926.86+384250.7 b |
Star
Kepler-21| Name | Kepler-21 | ||
| Distance | 108.86 ( -0.38 +0.38 ) pc | ||
| Spectral type | F6 IV | ||
| Apparent magnitude V | 8.27 | ||
| Mass | 1.41 ( -0.03 +0.02 ) MSun | ||
| Age | 3.03 ( --0.35 +0.35 ) Gyr | ||
| Effective temperature | 6305.0 ( -50.0 +50.0 ) K | ||
| Radius | 1.9 ( -0.01 +0.02 ) RSun | ||
| Metallicity [Fe/H] | -0.03 ( -0.1 +0.1 ) | ||
| Detected Disc | — | ||
| Magnetic Field | — | ||
| RA2000 | 19:09:26.8 | ||
| Dec2000 | +38:42:50 | ||
| Alternate Names | Kepler-21, 2MASS J19092683+3842505, BD+38 3455, HD 179070, HIP 94112, KIC 3632418, KOI-975, Kepler-21 A, SAO 67891, TYC 3120-00963-1, WISE J190926.86+384250.7 | ||
| Planetary system | 1 planet |
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