This page summarises the information held within TEPCat for the transiting system K2-140b. 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 32 32.96 | h m s |
| Declination | −09 36 27.5 | d m s |
| Right ascension (decimal) | 188.13733 | degrees |
| Declination (decimal) | -9.60764 | degrees |
| V-band apparent magnitude | 12.34 | mag |
| K-band apparent magnitude | 10.99 | mag |
| Transit duration | 0.1402 ( 3.365 ) | day hour |
| Transit depth | 1.29 | % |
| Time of mid-transit | 2457588.28510 ± 0.00020 | HJD or BJD |
| Orbital period | 6.5691800 ± 0.0000400 | days |
| Reference for orbital ephemeris | 2018AJ....156...78L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5705 +50 −48 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | 0.13 ± 0.04 | dex |
| Stellar mass | 1.000 ± 0.020 | Msun |
| Stellar radius | 0.990 ± 0.010 | Rsun |
| Stellar logarithmic surface gravity | 4.450 ± 0.010 | c.g.s. |
| Stellar mean density | 1.100 +0.000 −0.100 ( 1.55 +0.00 −0.14 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.06870 ± 0.00050 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 1.093 ± 0.015 ( 12.25 ± 0.17 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 957 ± 11 | K |
| Reference of detailed study | 2018AJ....156...78L |
K2-140b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)