This page summarises the information held within TEPCat for the transiting planetary system TOI-178b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2021A+A...649A..26L | |
| Date of discovery paper | 2021 / 1 / 25 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 00 29 12.30 | h m s |
| Declination | −30 27 13.5 | d m s |
| Right ascension (decimal) | 7.30125 | degrees |
| Declination (decimal) | -30.45375 | degrees |
| V-band apparent magnitude | 11.95 | mag |
| K-band apparent magnitude | 8.76 | mag |
| Transit duration | 0.0710 ( 1.704 ) | day hour |
| Transit depth | 0.025 | % |
| Time of mid-transit | 2458741.6365 ± 0.0037 | HJD or BJD |
| Orbital period | 1.914554 ± 0.000017 | days |
| Reference for orbital ephemeris | arXiv:2308.11394 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 4316 ± 70 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.23 ± 0.05 | dex |
| Stellar mass | 0.647 +0.030 −0.029 | Msun |
| Stellar radius | 0.662 ± 0.010 | Rsun |
| Stellar logarithmic surface gravity | 4.45 ± 0.15 | c.g.s. |
| Stellar mean density | 2.23 ± 0.14 ( 3.15 ± 0.20 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.02609 +0.00031 −0.00034 | AU |
| Planetary mass | 0.0047 +0.0012 −0.0014 ( 1.49 +0.38 −0.45 ) | Mjup Mearth |
| Planetary radius | 0.1018 ± 0.0052 ( 1.141 ± 0.058 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 4.1 +1.5 −1.3 ( 5.4 +2.0 −1.7 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1040 +22 −21 | K |
| Reference of detailed study | arXiv:2308.11394 |
TOI-178b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2023/09/01 John Southworth (Keele University, UK)