This page summarises the information held within TEPCat for the transiting planetary system TOI-277. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2023MNRAS.519.1562M | |
| Date of discovery paper | 2022 / 11 / 17 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 01 16 18.54 | h m s |
| Declination | −20 57 07.9 | d m s |
| Right ascension (decimal) | 19.07725 | degrees |
| Declination (decimal) | -20.95219 | degrees |
| V-band apparent magnitude | 13.50 | mag |
| K-band apparent magnitude | 9.56 | mag |
| Transit duration | 0.088 ( 2.11 ) | day hour |
| Transit depth | 0.5 | % |
| Time of mid-transit | 2459119.8264 ± 0.0017 | HJD or BJD |
| Orbital period | 3.9940 ± 0.0004 | days |
| Reference for orbital ephemeris | 2023MNRAS.519.1562M |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 4031 +21 −23 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.01 +0.07 −0.09 | dex |
| Stellar mass | 0.16 ± 0.01 | Msun |
| Stellar radius | 0.362 +0.008 −0.004 | Rsun |
| Stellar logarithmic surface gravity | 4.58 +0.10 −0.13 | c.g.s. |
| Stellar mean density | 3.4 ± 0.3 ( 4.80 ± 0.42 ) | ρsun g cm-3 |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.0269 ± 0.0011 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.236 ± 0.016 ( 2.65 ± 0.18 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | K | |
| Reference of detailed study | 2023MNRAS.519.1562M |
TOI-277 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/24 John Southworth (Keele University, UK)