This page summarises the information held within TEPCat for the transiting system K2-108b. 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 13 31.65 | h m s |
| Declination | +16 25 10.5 | d m s |
| Right ascension (decimal) | 123.38188 | degrees |
| Declination (decimal) | 16.41958 | degrees |
| V-band apparent magnitude | 11.99 | mag |
| K-band apparent magnitude | 10.56 | mag |
| Transit duration | 0.2123 ( 5.095 ) | day hour |
| Transit depth | 0.08 | % |
| Time of mid-transit | 2457145.09609 ± 0.00172 | HJD or BJD |
| Orbital period | 4.7339990 ± 0.0002210 | days |
| Reference for orbital ephemeris | 2018AJ....156..277L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5599 ± 87 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | 0.36 ± 0.05 | dex |
| Stellar mass | 1.170 ± 0.060 | Msun |
| Stellar radius | 1.760 ± 0.040 | Rsun |
| Stellar logarithmic surface gravity | 4.020 ± 0.030 | c.g.s. |
| Stellar mean density | 0.572 +0.167 −0.138 ( 0.81 +0.24 −0.19 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.05810 ± 0.00090 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.476 ± 0.019 ( 5.34 ± 0.21 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 1360 ± 29 | K |
| Reference of detailed study | 2018AJ....156..277L |
K2-108b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)