This page summarises the information held within TEPCat for the transiting planetary system TOI-4994. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2025AJ....169...72R | |
| Date of discovery paper | 2025 / 2 / 5 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 18 52 31.81 | h m s |
| Declination | −78 26 04.0 | d m s |
| Right ascension (decimal) | 283.13254 | degrees |
| Declination (decimal) | -78.43444 | degrees |
| V-band apparent magnitude | 12.65 | mag |
| K-band apparent magnitude | 10.80 | mag |
| Transit duration | 0.1855 ( 4.452 ) | day hour |
| Transit depth | 0.7 | % |
| Time of mid-transit | 2459363.69480 ± 0.00076 | HJD or BJD |
| Orbital period | 21.491984 ± 0.000023 | days |
| Reference for orbital ephemeris | 2025AJ....169...72R |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5640 ± 110 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.165 +0.083 −0.084 | dex |
| Stellar mass | 1.005 +0.064 −0.061 | Msun |
| Stellar radius | 1.055 +0.040 −0.037 | Rsun |
| Stellar logarithmic surface gravity | 4.393 +0.045 −0.046 | c.g.s. |
| Stellar mean density | 0.86 +0.12 −0.11 ( 1.21 +0.17 −0.16 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.319 +0.048 −0.047 | |
| Orbital semimajor axis | 0.1515 +0.0032 −0.0031 | AU |
| Planetary mass | 0.280 +0.037 −0.034 ( 89 +11 −10 ) | Mjup Mearth |
| Planetary radius | 0.762 +0.030 −0.027 ( 8.54 +0.34 −0.30 ) | Rjup Rearth |
| Planetary surface gravity | 11.9 +2.1 −1.9 3.08 +0.07 −0.08 | m/s2 log(cgs) |
| Planetary mean density | 0.59 +0.12 −0.11 ( 0.78 +0.16 −0.15 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 718 ± 10 | K |
| Reference of detailed study | 2025AJ....169...72R |
TOI-4994 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/17 John Southworth (Keele University, UK)