This page summarises the information held within TEPCat for the transiting system K2-188c. 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 39 15.27 | h m s |
| Declination | +23 21 26.9 | d m s |
| Right ascension (decimal) | 129.81363 | degrees |
| Declination (decimal) | 23.35747 | degrees |
| V-band apparent magnitude | 12.56 | mag |
| K-band apparent magnitude | 11.15 | mag |
| Transit duration | 0.1753 ( 4.207 ) | day hour |
| Transit depth | 0.05 | % |
| Time of mid-transit | 2457144.85447 ± 0.00397 | HJD or BJD |
| Orbital period | 7.8102530 ± 0.0008460 | days |
| Reference for orbital ephemeris | 2018AJ....156..277L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5977 ± 87 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.01 ± 0.05 | dex |
| Stellar mass | 1.060 ± 0.030 | Msun |
| Stellar radius | 1.190 ± 0.030 | Rsun |
| Stellar logarithmic surface gravity | 4.310 ± 0.030 | c.g.s. |
| Stellar mean density | 0.828 +0.385 −0.289 ( 1.17 +0.54 −0.41 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.07850 ± 0.00080 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.252 ± 0.013 ( 2.82 ± 0.15 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 1026 ± 20 | K |
| Reference of detailed study | 2018AJ....156..277L |
K2-188c does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)