This page summarises the information held within TEPCat for the transiting system K2-357b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2022MNRAS.509.1075C | |
| Date of discovery paper | 2021 / 9 / 9 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 08 47 45.29 | h m s |
| Declination | +16 19 44.1 | d m s |
| Right ascension (decimal) | 131.93871 | degrees |
| Declination (decimal) | 16.32892 | degrees |
| V-band apparent magnitude | 13.63 | mag |
| K-band apparent magnitude | 11.95 | mag |
| Transit duration | 0.20 ( 4.8 ) | day hour |
| Transit depth | 0.13 | % |
| Time of mid-transit | 2458255.1162 ± 0.0018 | HJD or BJD |
| Orbital period | 16.3489 ± 0.0014 | days |
| Reference for orbital ephemeris | 2022MNRAS.509.1075C |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5794 +210 −169 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.02 +0.14 −0.16 | dex |
| Stellar mass | 0.98 ± 0.07 | Msun |
| Stellar radius | 1.00 ± 0.05 | Rsun |
| Stellar logarithmic surface gravity | 4.43 ± 0.04 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.1450 +0.0136 −0.0235 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.332 +0.021 −0.019 ( 3.72 +0.24 −0.21 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 735 +8 −39 | K |
| Reference of detailed study | 2022MNRAS.509.1075C |
K2-357b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)