This page summarises the information held within TEPCat for the transiting system K2-57. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2016ApJS..226....7C | |
| Date of discovery paper | 2016 / 7 / 19 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 22 50 46.01 | h m s |
| Declination | −14 04 11.6 | d m s |
| Right ascension (decimal) | 342.69171 | degrees |
| Declination (decimal) | -14.06989 | degrees |
| V-band apparent magnitude | 14.50 | mag |
| K-band apparent magnitude | 11.64 | mag |
| Transit duration | 0.095 ( 2.28 ) | day hour |
| Transit depth | 0.09 | % |
| Time of mid-transit | 2456984.33600 ± 0.00480 | HJD or BJD |
| Orbital period | 9.006300 ± 0.001300 | days |
| Reference for orbital ephemeris | 2016ApJS..226....7C |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 4434 ± 61 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | dex | |
| Stellar mass | 0.683 ± 0.056 | Msun |
| Stellar radius | 0.621 ± 0.049 | Rsun |
| Stellar logarithmic surface gravity | 4.680 ± 0.050 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.075 ± 0.002 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.187 ± 0.022 ( 2.10 ± 0.25 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | K | |
| Reference of detailed study | 2016ApJS..226....7C |
K2-57 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)