This page summarises the information held within TEPCat for the transiting planetary system TOI-4940. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | arXiv:2512.07716 | |
| Date of discovery paper | 2025 / 12 / 9 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 03 53 00.28 | h m s |
| Declination | −62 24 28.7 | d m s |
| Right ascension (decimal) | 58.25117 | degrees |
| Declination (decimal) | -62.40797 | degrees |
| V-band apparent magnitude | 12.44 | mag |
| K-band apparent magnitude | 10.77 | mag |
| Transit duration | 0.1788 ( 4.291 ) | day hour |
| Transit depth | 0.25 | % |
| Time of mid-transit | 2459265.3032 ± 0.0014 | HJD or BJD |
| Orbital period | 25.867811 ± 0.000057 | days |
| Reference for orbital ephemeris | arXiv:2512.07716 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5504 +43 −55 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.326 +0.037 −0.049 | dex |
| Stellar mass | 1.012 +0.040 −0.047 | Msun |
| Stellar radius | 1.163 +0.054 −0.053 | Rsun |
| Stellar logarithmic surface gravity | 4.23 +0.11 −0.07 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.165 ± 0.012 | AU |
| Planetary mass | 0.0 +0.28 −0.0 ( 0 +89 −0 ) | Mjup Mearth |
| Planetary radius | 0.590 ± 0.033 ( 6.61 ± 0.37 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 643 +21 −18 | K |
| Reference of detailed study | arXiv:2512.07716 |
TOI-4940 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2026/01/29 John Southworth (Keele University, UK)