This page summarises the information held within TEPCat for the transiting planetary system TOI-4666. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | arXiv:2510.11703 | |
| Date of discovery paper | 2025 / 10 / 14 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 03 45 09.57 | h m s |
| Declination | −39 03 47.1 | d m s |
| Right ascension (decimal) | 56.28987 | degrees |
| Declination (decimal) | -39.06308 | degrees |
| V-band apparent magnitude | 15.33 | mag |
| K-band apparent magnitude | 11.09 | mag |
| Transit duration | 0.0991 ( 2.378 ) | day hour |
| Transit depth | 4.2 | % |
| Time of mid-transit | 2459168.4741 ± 0.0002 | HJD or BJD |
| Orbital period | 2.9089181 ± 0.0000006 | days |
| Reference for orbital ephemeris | arXiv:2510.11703 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3512 ± 36 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.1 ± 0.1 | dex |
| Stellar mass | 0.58 ± 0.01 | Msun |
| Stellar radius | 0.59 ± 0.02 | Rsun |
| Stellar logarithmic surface gravity | 4.626 +0.008 −0.004 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.0333 ± 0.0002 | AU |
| Planetary mass | 0.70 +0.05 −0.06 ( 222 +15 −19 ) | Mjup Mearth |
| Planetary radius | 1.11 ± 0.04 ( 12.44 ± 0.45 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 0.47 +0.07 −0.06 ( 0.623 +0.093 −0.080 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 713 ± 14 | K |
| Reference of detailed study | arXiv:2510.11703 |
TOI-4666 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2026/01/29 John Southworth (Keele University, UK)