This page summarises the information held within TEPCat for the transiting planetary system TOI-3856. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2025ApJS..280...30Y | |
| Date of discovery paper | 2025 / 7 / 3 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 09 40 53.50 | h m s |
| Declination | +27 57 00.6 | d m s |
| Right ascension (decimal) | 145.22292 | degrees |
| Declination (decimal) | 27.95017 | degrees |
| V-band apparent magnitude | 12.31 | mag |
| K-band apparent magnitude | 10.61 | mag |
| Transit duration | 0.07600 ( 1.8240 ) | day hour |
| Transit depth | 1.4 | % |
| Time of mid-transit | 2459562.40174 ± 0.00033 | HJD or BJD |
| Orbital period | 2.04360353 ± 0.00000093 | days |
| Reference for orbital ephemeris | 2025ApJS..280...30Y |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5597 +73 −68 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.448 +0.076 −0.064 | dex |
| Stellar mass | 1.078 +0.061 −0.054 | Msun |
| Stellar radius | 1.065 +0.025 −0.029 | Rsun |
| Stellar logarithmic surface gravity | 4.418 +0.038 −0.027 | c.g.s. |
| Stellar mean density | 0.894 +0.092 −0.071 ( 1.26 +0.13 −0.10 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.054 +0.038 −0.071 | |
| Orbital semimajor axis | 0.03232 +0.00062 −0.00053 | AU |
| Planetary mass | 0.52 +0.11 −0.12 ( 165 +34 −38 ) | Mjup Mearth |
| Planetary radius | 1.224 +0.032 −0.035 ( 13.72 + 0.36 − 0.39 ) | Rjup Rearth |
| Planetary surface gravity | 8.5 +2.5 −1.6 2.93 +0.11 −0.09 | m/s2 log(cgs) |
| Planetary mean density | 0.26 +0.06 −0.07 ( 0.345 +0.080 −0.093 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1549 +15 −17 | K |
| Reference of detailed study | 2025ApJS..280...30Y |
TOI-3856 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2026/01/29 John Southworth (Keele University, UK)