This page summarises the information held within TEPCat for the transiting planetary system TOI-1438c. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2025A+A...702A..69P | |
| Date of discovery paper | 2025 / 9 / 1 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 18 43 41.71 | h m s |
| Declination | +47 56 16.2 | d m s |
| Right ascension (decimal) | 280.92379 | degrees |
| Declination (decimal) | 47.93783 | degrees |
| V-band apparent magnitude | 10.96 | mag |
| K-band apparent magnitude | 9.09 | mag |
| Transit duration | 0.0696 ( 1.670 ) | day hour |
| Transit depth | 0.08 | % |
| Time of mid-transit | 2458689.9136 ± 0.0014 | HJD or BJD |
| Orbital period | 9.428089 ± 0.000001 | days |
| Reference for orbital ephemeris | 2025A+A...702A..69P |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5230 +60 −06 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.03 ± 0.06 | dex |
| Stellar mass | 0.876 ± 0.038 | Msun |
| Stellar radius | 0.820 ± 0.017 | Rsun |
| Stellar logarithmic surface gravity | 4.50 ± 0.07 | c.g.s. |
| Stellar mean density | 1.56 ± 0.14 ( 2.20 ± 0.20 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.083 ± 0.003 | AU |
| Planetary mass | 0.0333 ± 0.0066 ( 10.6 ± 2.1 ) | Mjup Mearth |
| Planetary radius | 0.245 ± 0.012 ( 2.75 ± 0.13 ) | Rjup Rearth |
| Planetary surface gravity | 14.3 ± 3.0 3.16 ± 0.08 | m/s2 log(cgs) |
| Planetary mean density | 2.19 ± 0.53 ( 2.91 ± 0.70 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 794 ± 9 | K |
| Reference of detailed study | 2025A+A...702A..69P |
TOI-1438c does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2026/01/29 John Southworth (Keele University, UK)