This page summarises the information held within TEPCat for the transiting planetary system K2-239d. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2018MNRAS.480L...1D | |
| Date of discovery paper | 2018 / 6 / 5 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 10 42 22.63 | h m s |
| Declination | +04 26 28.9 | d m s |
| Right ascension (decimal) | 160.59429 | degrees |
| Declination (decimal) | 4.44136 | degrees |
| V-band apparent magnitude | 13.55 | mag |
| K-band apparent magnitude | 9.97 | mag |
| Transit duration | 0.0766 ( 1.838 ) | day hour |
| Transit depth | 0.065 | % |
| Time of mid-transit | 2457908.381 ± -1 | HJD or BJD |
| Orbital period | 10.115 ± 0.001 | days |
| Reference for orbital ephemeris | 2018MNRAS.480L...1D |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3420 ± 18 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | dex | |
| Stellar mass | 0.40 ± 0.01 | Msun |
| Stellar radius | 0.36 ± 0.01 | Rsun |
| Stellar logarithmic surface gravity | 4.9 ± 0.1 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | AU | |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.098 ± 0.009 ( 1.10 ± 0.10 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 399 +18 −15 | K |
| Reference of detailed study | 2018MNRAS.480L...1D |
K2-239d does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2026/01/29 John Southworth (Keele University, UK)