This page summarises the information held within TEPCat for the transiting planetary system K2-234. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2018AJ....156..127Y | |
| Date of discovery paper | 2018 / 3 / 9 | y / m / d |
| Data/telescope used for discovery | K2 | |
| Right ascension | 10 18 41.06 | h m s |
| Declination | +10 07 44.5 | d m s |
| Right ascension (decimal) | 154.67108 | degrees |
| Declination (decimal) | 10.12903 | degrees |
| V-band apparent magnitude | 9.38 | mag |
| K-band apparent magnitude | 7.72 | mag |
| Transit duration | 0.2378 ( 5.707 ) | day hour |
| Transit depth | 0.14 | % |
| Time of mid-transit | 2457913.8050 ± 0.0010 | HJD or BJD |
| Orbital period | 11.81430 ± 0.00020 | days |
| Reference for orbital ephemeris | 2018AJ....156..127Y |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5622 +70 −71 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.436 +0.040 −0.050 | dex |
| Stellar mass | 1.324 +0.044 −0.041 | Msun |
| Stellar radius | 1.733 ± 0.047 | Rsun |
| Stellar logarithmic surface gravity | 4.083 +0.023 −0.022 | c.g.s. |
| Stellar mean density | 0.254 +0.021 −0.018 ( 0.358 +0.030 −0.025 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.22 +0.10 −0.12 | |
| Orbital semimajor axis | 0.1115 ± 0.0012 | AU |
| Planetary mass | 0.121 +0.018 −0.019 ( 38.5 +5.7 −6.0 ) | Mjup Mearth |
| Planetary radius | 0.648 +0.029 −0.028 ( 7.26 +0.33 −0.31 ) | Rjup Rearth |
| Planetary surface gravity | 7.1 +1.2 −1.1 2.85 +0.07 −0.07 | m/s2 log(cgs) |
| Planetary mean density | 0.412 +0.083 −0.072 ( 0.547 +0.110 −0.096 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1068 +14 −15 | K |
| Reference of detailed study | 2018AJ....156..127Y |
| Reference | λ (degrees) |
|---|---|
| Bourrier et al. (2023) | 74 + 34 - 33 |
Page generated on 2025/03/24 John Southworth (Keele University, UK)