This page summarises the information held within TEPCat for the transiting system K2-242b. 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 | 11 59 20.61 | h m s |
| Declination | −06 31 04.2 | d m s |
| Right ascension (decimal) | 179.83587 | degrees |
| Declination (decimal) | -6.51783 | degrees |
| V-band apparent magnitude | 15.32 | mag |
| K-band apparent magnitude | 11.78 | mag |
| Transit duration | 0.0722 ( 1.733 ) | day hour |
| Transit depth | 0.40 | % |
| Time of mid-transit | 2457586.24000 ± 0.00540 | HJD or BJD |
| Orbital period | 6.5138900 ± 0.0008200 | days |
| Reference for orbital ephemeris | 2018AJ....156...78L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3459 +65 −38 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.01 +0.16 −0.18 | dex |
| Stellar mass | 0.380 ± 0.010 | Msun |
| Stellar radius | 0.370 ± 0.010 | Rsun |
| Stellar logarithmic surface gravity | 4.890 ± 0.010 | c.g.s. |
| Stellar mean density | 3.400 +2.100 −2.000 ( 4.8 +3.0 −2.8 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.04940 ± 0.00040 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.227 +0.019 −0.017 ( 2.54 +0.21 −0.19 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 416 ± 8 | K |
| Reference of detailed study | 2018AJ....156...78L |
K2-242b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)