This page summarises the information held within TEPCat for the transiting planetary system TOI-858B. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2023A+A...679A..70H | |
| Date of discovery paper | 2023 / 9 / 21 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 04 00 47.96 | h m s |
| Declination | −54 35 34.5 | d m s |
| Right ascension (decimal) | 60.19983 | degrees |
| Declination (decimal) | -54.59292 | degrees |
| V-band apparent magnitude | 11.18 | mag |
| K-band apparent magnitude | 9.72 | mag |
| Transit duration | 0.15010 ( 3.6024 ) | day hour |
| Transit depth | 1.0 | % |
| Time of mid-transit | 2458386.45235 ± 0.00028 | HJD or BJD |
| Orbital period | 3.2797178 ± 0.0000014 | days |
| Reference for orbital ephemeris | 2023A+A...679A..70H |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5842 +84 −79 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.153 ± 0.091 | dex |
| Stellar mass | 1.081 +0.076 −0.070 | Msun |
| Stellar radius | 1.308 +0.037 −0.038 | Rsun |
| Stellar logarithmic surface gravity | 4.238 +0.038 −0.035 | c.g.s. |
| Stellar mean density | 0.482 +0.056 −0.052 ( 0.680 +0.079 −0.073 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.15 −0.0 | |
| Orbital semimajor axis | 0.04435 +0.0010 −0.0009 | AU |
| Planetary mass | 1.10 +0.08 −0.07 ( 349 +25 −22 ) | Mjup Mearth |
| Planetary radius | 1.255 ± 0.039 ( 14.07 ± 0.44 ) | Rjup Rearth |
| Planetary surface gravity | 17.3 +1.7 −1.5 3.24 +0.04 −0.04 | m/s2 log(cgs) |
| Planetary mean density | 0.520 +0.066 −0.055 ( 0.690 +0.088 −0.073 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1529 +23 −22 | K |
| Reference of detailed study | 2023A+A...679A..70H |
| Reference | λ (degrees) |
|---|---|
| Hagelberg et al. (2023) | 99.3 + 3.8 - 3.7 |
Page generated on 2025/03/12 John Southworth (Keele University, UK)