This page summarises the information held within TEPCat for the transiting planetary system TOI-444. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2023AJ....165..134O | |
| Date of discovery paper | 2023 / 1 / 25 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 04 16 44.19 | h m s |
| Declination | −26 45 57.3 | d m s |
| Right ascension (decimal) | 64.18412 | degrees |
| Declination (decimal) | -26.76592 | degrees |
| V-band apparent magnitude | 9.89 | mag |
| K-band apparent magnitude | 7.83 | mag |
| Transit duration | 0.157 ( 3.77 ) | day hour |
| Transit depth | 0.11 | % |
| Time of mid-transit | 2459190.0391 ± 0.0008 | HJD or BJD |
| Orbital period | 17.96360 ± 0.00004 | days |
| Reference for orbital ephemeris | 2023AJ....165..134O |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5225 ± 70 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | dex | |
| Stellar mass | 0.96 ± 0.13 | Msun |
| Stellar radius | 0.779 ± 0.053 | Rsun |
| Stellar logarithmic surface gravity | c.g.s. | |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.133 ± 0.006 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.247 ± 0.018 ( 2.77 ± 0.20 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 609 ± 61 | K |
| Reference of detailed study | 2023AJ....165..134O |
TOI-444 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2026/01/29 John Southworth (Keele University, UK)