This page summarises the information held within TEPCat for the transiting planetary system TOI-2031. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2024ApJ...973L..21W | |
| Date of discovery paper | 2024 / 8 / 20 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 22 04 28.09 | h m s |
| Declination | +81 33 57.4 | d m s |
| Right ascension (decimal) | 331.11704 | degrees |
| Declination (decimal) | 81.56594 | degrees |
| V-band apparent magnitude | 11.25 | mag |
| K-band apparent magnitude | 9.97 | mag |
| Transit duration | 0.1679 ( 4.030 ) | day hour |
| Transit depth | 1.1 | % |
| Time of mid-transit | 2459806.02915 ± 0.00010 | HJD or BJD |
| Orbital period | 5.71548654 ± 0.00000076 | days |
| Reference for orbital ephemeris | 2025ApJS..280...30Y |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6460 +150 −200 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.25 +0.15 −0.11 | dex |
| Stellar mass | 1.158 +0.084 −0.072 | Msun |
| Stellar radius | 1.248 +0.032 −0.036 | Rsun |
| Stellar logarithmic surface gravity | 4.311 +0.044 −0.032 | c.g.s. |
| Stellar mean density | 0.599 +0.069 −0.055 ( 0.845 +0.097 −0.078 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.050 +0.035 −0.065 | |
| Orbital semimajor axis | 0.0657 +0.0016 −0.0013 | AU |
| Planetary mass | 0.77 +0.24 −0.23 ( 244 +76 −73 ) | Mjup Mearth |
| Planetary radius | 1.274 +0.033 −0.037 ( 14.28 + 0.37 − 0.41 ) | Rjup Rearth |
| Planetary surface gravity | 11.7 +5.2 −2.8 3.1 +0.2 −0.1 | m/s2 log(cgs) |
| Planetary mean density | 0.35 ± 0.11 ( 0.46 ± 0.15 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1361 +28 −35 | K |
| Reference of detailed study | 2025ApJS..280...30Y |
| Reference | λ (degrees) |
|---|---|
| Wang et al. (2024) | −6.1 ± 7.5 |
Page generated on 2026/01/29 John Southworth (Keele University, UK)