This page summarises the information held within TEPCat for the transiting system K2-117c. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2018AJ....156..277L | |
| Date of discovery paper | 2018 / 10 / 10 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 08 55 25.36 | h m s |
| Declination | +10 28 08.8 | d m s |
| Right ascension (decimal) | 133.85567 | degrees |
| Declination (decimal) | 10.46911 | degrees |
| V-band apparent magnitude | 13.57 | mag |
| K-band apparent magnitude | 10.59 | mag |
| Transit duration | 0.0835 ( 2.004 ) | day hour |
| Transit depth | 0.14 | % |
| Time of mid-transit | 2457143.56630 ± 0.00358 | HJD or BJD |
| Orbital period | 5.4440170 ± 0.0004620 | days |
| Reference for orbital ephemeris | 2018AJ....156..277L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3778 ± 53 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.05 ± 0.13 | dex |
| Stellar mass | 0.540 ± 0.010 | Msun |
| Stellar radius | 0.510 ± 0.010 | Rsun |
| Stellar logarithmic surface gravity | 4.750 ± 0.010 | c.g.s. |
| Stellar mean density | 2.879 +1.669 −1.200 ( 4.1 +2.4 −1.7 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.04920 ± 0.00030 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.184 ± 0.011 ( 2.06 ± 0.12 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 537 ± 9 | K |
| Reference of detailed study | 2018AJ....156..277L |
K2-117c does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)