This page summarises the information held within TEPCat for the transiting planetary system Kepler-22. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2012ApJ...745..120B | |
| Date of discovery paper | 2011 / 12 / 8 | y / m / d |
| Data/telescope used for discovery | Kepler | |
| Right ascension | 19 16 52.19 | h m s |
| Declination | +47 53 04.0 | d m s |
| Right ascension (decimal) | 289.21746 | degrees |
| Declination (decimal) | 47.88444 | degrees |
| V-band apparent magnitude | 11.81 | mag |
| K-band apparent magnitude | 10.15 | mag |
| Transit duration | 0.3075 ( 7.380 ) | day hour |
| Transit depth | 0.05 | % |
| Time of mid-transit | 2455546.4248 ± 0.0011 | HJD or BJD |
| Orbital period | 289.8644 ± 0.0009 | days |
| Reference for orbital ephemeris | 2013ApJ...777..134K |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5518 ± 44 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.29 ± 0.06 | dex |
| Stellar mass | 0.970 ± 0.060 | Msun |
| Stellar radius | 0.979 ± 0.020 | Rsun |
| Stellar logarithmic surface gravity | 4.44 ± 0.06 | c.g.s. |
| Stellar mean density | 1.033 ± 0.021 ( 1.458 ± 0.030 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.13 +0.36 −0.13 | |
| Orbital semimajor axis | 0.848 ± 0.018 | AU |
| Planetary mass | 0.022 +0.066 −0.020 ( 7.0 +21.0 −6.4 ) | Mjup Mearth |
| Planetary radius | 0.214 +0.008 −0.016 ( 2.399 +0.090 −0.179 ) | Rjup Rearth |
| Planetary surface gravity | 26 +37 −19 3.4 +0.4 −0.6 | m/s2 log(cgs) |
| Planetary mean density | 1.8 +5.7 −1.7 ( 2.4 +7.6 −2.3 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 262 | K |
| Reference of detailed study | 2013ApJ...777..134K |
Kepler-22 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/12 John Southworth (Keele University, UK)