This page summarises the information held within TEPCat for the transiting planetary system TOI-791b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2026MNRAS.549ag864D | |
| Date of discovery paper | 2026 / 6 / 30 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 07 53 44.34 | h m s |
| Declination | −69 42 06.3 | d m s |
| Right ascension (decimal) | 118.43475 | degrees |
| Declination (decimal) | -69.70175 | degrees |
| V-band apparent magnitude | 11.09 | mag |
| K-band apparent magnitude | 9.99 | mag |
| Transit duration | 0.5153 ( 12.367 ) | day hour |
| Transit depth | 0.5 | % |
| Time of mid-transit | 2459263.45083 ± 0.00075 | HJD or BJD |
| Orbital period | 139.29931 ± 0.00012 | days |
| Reference for orbital ephemeris | 2026MNRAS.549ag864D |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6294 ± 128 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.14 ± 0.14 | dex |
| Stellar mass | 1.28 ± 0.08 | Msun |
| Stellar radius | 1.474 ± 0.047 | Rsun |
| Stellar logarithmic surface gravity | 3.71 ± 0.36 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.602 ± 0.022 | AU |
| Planetary mass | 0.0 +12.6 −0.0 ( 0 +4005 −0 ) | Mjup Mearth |
| Planetary radius | 0.993 ± 0.033 ( 11.13 ± 0.37 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 434 ± 10 | K |
| Reference of detailed study | 2026MNRAS.549ag864D |
TOI-791b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2026/07/02 John Southworth (Keele University, UK)