This page summarises the information held within TEPCat for the transiting planetary system K2-131. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2017AJ....154..226D | |
| Date of discovery paper | 2017 / 10 / 3 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 12 11 00.38 | h m s |
| Declination | −09 45 54.8 | d m s |
| Right ascension (decimal) | 182.75158 | degrees |
| Declination (decimal) | -9.76522 | degrees |
| V-band apparent magnitude | 12.12 | mag |
| K-band apparent magnitude | 10.05 | mag |
| Transit duration | 0.058 ( 1.39 ) | day hour |
| Transit depth | 0.05 | % |
| Time of mid-transit | 2457582.9360 ± 0.0011 | HJD or BJD |
| Orbital period | 0.3693038 ± 0.0000091 | days |
| Reference for orbital ephemeris | 2017AJ....154..226D |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5200 ± 100 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.02 ± 0.08 | dex |
| Stellar mass | 0.793 +0.024 −0.040 | Msun |
| Stellar radius | 0.744 +0.010 −0.009 | Rsun |
| Stellar logarithmic surface gravity | 4.62 ± 0.10 | c.g.s. |
| Stellar mean density | 1.92 +0.10 −0.13 ( 2.71 +0.14 −0.18 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.26 −0.0 | |
| Orbital semimajor axis | AU | |
| Planetary mass | 0.0198 ± 0.0044 ( 6.3 ± 1.4 ) | Mjup Mearth |
| Planetary radius | 0.1473 +0.0058 −0.0050 ( 1.651 +0.065 −0.056 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 5.8 ± 2.0 ( 7.7 ± 2.7 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | K | |
| Reference of detailed study | 2019ApJ...883...79D |
K2-131 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2024/09/10 John Southworth (Keele University, UK)