This page summarises the information held within TEPCat for the transiting system K2-12b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2015ApJ...809...25M | |
| Date of discovery paper | 2015 / 3 / 27 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 11 32 46.09 | h m s |
| Declination | +02 14 41.6 | d m s |
| Right ascension (decimal) | 173.19204 | degrees |
| Declination (decimal) | 2.24489 | degrees |
| V-band apparent magnitude | 12.26 | mag |
| K-band apparent magnitude | 10.60 | mag |
| Transit duration | 0.0 ( 0. ) | day hour |
| Transit depth | 0.04 | % |
| Time of mid-transit | 2456815.37380 ± 0.00610 | HJD or BJD |
| Orbital period | 8.28186 ± 0.00060 | days |
| Reference for orbital ephemeris | 2015ApJ...809...25M |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5800 +53 −90 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | 0.03 +0.13 −0.17 | dex |
| Stellar mass | 1.01 +0.05 −0.06 | Msun |
| Stellar radius | 1.01 +0.27 −0.09 | Rsun |
| Stellar logarithmic surface gravity | c.g.s. | |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.0802 ± 0.0021 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.208 ± 0.052 ( 2.33 ± 0.58 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 1003 ± 121 | K |
| Reference of detailed study | 2015ApJ...809...25M |
K2-12b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)