This page summarises the information held within TEPCat for the transiting planetary system TOI-270b. 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 | 0.06 ( 1.4 ) | day hour |
| Transit depth | 0.09 | % |
| Time of mid-transit | 2458461.01556 ± 0.00059 | HJD or BJD |
| Orbital period | 3.36016 ± 0.00004 | 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 | 0.036 ± 0.027 | |
| Orbital semimajor axis | 0.03199 ± 0.00022 | AU |
| Planetary mass | 0.0047 ± 0.0006 ( 1.49 ± 0.19 ) | Mjup Mearth |
| Planetary radius | 0.1142 ± 0.0045 ( 1.280 ± 0.050 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 2.93 ± 0.50 ( 3.89 ± 0.66 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 600 ± 16 | K |
| Reference of detailed study | arXiv:2308.10763 |
TOI-270b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2024/09/10 John Southworth (Keele University, UK)