This page summarises the information held within TEPCat for the transiting system K2-252b. 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 09 27.92 | h m s |
| Declination | −08 18 34.2 | d m s |
| Right ascension (decimal) | 182.36633 | degrees |
| Declination (decimal) | -8.30950 | degrees |
| V-band apparent magnitude | 12.42 | mag |
| K-band apparent magnitude | 10.68 | mag |
| Transit duration | 0.1611 ( 3.866 ) | day hour |
| Transit depth | 0.04 | % |
| Time of mid-transit | 2457596.19010 ± 0.01180 | HJD or BJD |
| Orbital period | 13.8151300 ± 0.0046100 | days |
| Reference for orbital ephemeris | 2018AJ....156...78L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5152 +41 −39 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.09 ± 0.04 | dex |
| Stellar mass | 0.790 +0.020 −0.010 | Msun |
| Stellar radius | 0.820 ± 0.010 | Rsun |
| Stellar logarithmic surface gravity | 4.500 +0.020 −0.010 | c.g.s. |
| Stellar mean density | 1.200 +0.600 −0.700 ( 1.69 +0.85 −0.99 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.10410 +0.00080 −0.00070 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.155 +0.015 −0.011 ( 1.74 +0.17 −0.12 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 639 ± 7 | K |
| Reference of detailed study | 2018AJ....156...78L |
K2-252b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)