This page summarises the information held within TEPCat for the transiting planetary system TOI-270c. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2019NatAs...3.1099G | |
| Date of discovery paper | 2019 / 3 / 15 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 04 33 39.72 | h m s |
| Declination | −51 57 22.4 | d m s |
| Right ascension (decimal) | 68.41550 | degrees |
| Declination (decimal) | -51.95622 | degrees |
| V-band apparent magnitude | 12.62 | mag |
| K-band apparent magnitude | 8.25 | mag |
| Transit duration | 0.07 ( 1.7 ) | day hour |
| Transit depth | 0.3 | % |
| Time of mid-transit | 2458463.08056 ± 0.00040 | HJD or BJD |
| Orbital period | 5.66057 ± 0.00001 | days |
| Reference for orbital ephemeris | arXiv:2308.10763 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3506 ± 70 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.20 ± 0.12 | dex |
| Stellar mass | 0.386 ± 0.008 | Msun |
| Stellar radius | 0.380 ± 0.008 | Rsun |
| Stellar logarithmic surface gravity | 4.872 ± 0.026 | c.g.s. |
| Stellar mean density | 7.53 ± 0.52 ( 10.62 ± 0.73 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.031 ± 0.021 | |
| Orbital semimajor axis | 0.04529 ± 0.00031 | AU |
| Planetary mass | 0.0195 ± 0.0010 ( 6.20 ± 0.32 ) | Mjup Mearth |
| Planetary radius | 0.2079 ± 0.0009 ( 2.330 ± 0.010 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 2.04 ± 0.11 ( 2.71 ± 0.15 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 489 ± 11 | K |
| Reference of detailed study | arXiv:2308.10763 |
TOI-270c does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2024/09/10 John Southworth (Keele University, UK)