This page summarises the information held within TEPCat for the transiting planetary system TOI-198. 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 | 00 09 04.36 | h m s |
| Declination | −27 07 19.7 | d m s |
| Right ascension (decimal) | 2.26817 | degrees |
| Declination (decimal) | -27.12214 | degrees |
| V-band apparent magnitude | 11.67 | mag |
| K-band apparent magnitude | 8.14 | mag |
| Transit duration | 0.0680 ( 1.632 ) | day hour |
| Transit depth | 0.09 | % |
| Time of mid-transit | 2459480.0480 ± 0.0004 | HJD or BJD |
| Orbital period | 10.21520 ± 0.00006 | days |
| Reference for orbital ephemeris | 2023AJ....165..134O |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3650 ± 75 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.7 ± 0.5 | dex |
| Stellar mass | 0.467 ± 0.023 | Msun |
| Stellar radius | 0.441 ± 0.019 | Rsun |
| Stellar logarithmic surface gravity | c.g.s. | |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.100 ± 0.006 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.128 ± 0.007 ( 1.435 ± 0.078 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 368 ± 26 | K |
| Reference of detailed study | 2023AJ....165..134O |
TOI-198 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/17 John Southworth (Keele University, UK)