This page summarises the information held within TEPCat for the transiting planetary system K2-231. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2018AJ....155..173C | |
| Date of discovery paper | 2018 / 3 / 21 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 19 16 22.04 | h m s |
| Declination | −15 46 16.4 | d m s |
| Right ascension (decimal) | 289.09183 | degrees |
| Declination (decimal) | -15.77122 | degrees |
| V-band apparent magnitude | 12.70 | mag |
| K-band apparent magnitude | 10.86 | mag |
| Transit duration | 0.123 ( 2.95 ) | day hour |
| Transit depth | 0.07 | % |
| Time of mid-transit | 2457320.0016 ± 0.0035 | HJD or BJD |
| Orbital period | 13.8419 ± 0.0013 | days |
| Reference for orbital ephemeris | 2018AJ....155..173C |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5695 ± 50 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.14 ± 0.04 | dex |
| Stellar mass | 1.01 ± 0.03 | Msun |
| Stellar radius | 0.95 ± 0.03 | Rsun |
| Stellar logarithmic surface gravity | 4.48 ± 0.03 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | AU | |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.22 ± 0.02 ( 2.47 ± 0.22 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | K | |
| Reference of detailed study | 2018AJ....155..173C |
K2-231 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/02/12 John Southworth (Keele University, UK)