This page summarises the information held within TEPCat for the transiting system K2-250b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2018AJ....156...78L | |
| Date of discovery paper | 2018 / 7 / 2 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 12 20 07.62 | h m s |
| Declination | −08 58 32.8 | d m s |
| Right ascension (decimal) | 185.03175 | degrees |
| Declination (decimal) | -8.97578 | degrees |
| V-band apparent magnitude | 13.74 | mag |
| K-band apparent magnitude | 12.02 | mag |
| Transit duration | 0.1049 ( 2.518 ) | day hour |
| Transit depth | 0.08 | % |
| Time of mid-transit | 2457584.12120 ± 0.00610 | HJD or BJD |
| Orbital period | 4.0145700 ± 0.0006200 | days |
| Reference for orbital ephemeris | 2018AJ....156...78L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5172 +46 −44 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.09 ± 0.04 | dex |
| Stellar mass | 0.800 +0.030 −0.020 | Msun |
| Stellar radius | 0.810 ± 0.020 | Rsun |
| Stellar logarithmic surface gravity | 4.530 ± 0.030 | c.g.s. |
| Stellar mean density | 1.600 +0.600 −0.900 ( 2.26 +0.85 −1.27 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.04590 ± 0.00050 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.218 +0.017 −0.013 ( 2.44 +0.19 −0.15 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 958 +14 −13 | K |
| Reference of detailed study | 2018AJ....156...78L |
K2-250b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)