This page summarises the information held within TEPCat for the transiting planetary system TOI-771. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | arXiv:2311.00688 | |
| Date of discovery paper | 2023 / 11 / 2 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 10 56 27.33 | h m s |
| Declination | −72 59 06.6 | d m s |
| Right ascension (decimal) | 164.11388 | degrees |
| Declination (decimal) | -72.98517 | degrees |
| V-band apparent magnitude | 14.89 | mag |
| K-band apparent magnitude | 9.66 | mag |
| Transit duration | 0.040 ( 0.96 ) | day hour |
| Transit depth | 0.03 | % |
| Time of mid-transit | 2459572.4191 ± 0.0003 | HJD or BJD |
| Orbital period | 2.3260155 ± 0.0000010 | days |
| Reference for orbital ephemeris | 2025A+A...698A.223L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3370 ± 100 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.13 ± 0.07 | dex |
| Stellar mass | 0.220 +0.030 −0.035 | Msun |
| Stellar radius | 0.232 +0.017 −0.023 | Rsun |
| Stellar logarithmic surface gravity | 4.80 ± 0.07 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.055 +0.047 −0.036 | |
| Orbital semimajor axis | 0.0208 +0.0009 −0.0010 | AU |
| Planetary mass | 0.0078 ± 0.0010 ( 2.48 ± 0.32 ) | Mjup Mearth |
| Planetary radius | 0.121 ± 0.009 ( 1.36 ± 0.10 ) | Rjup Rearth |
| Planetary surface gravity | 13 ± 2 3.11 ± 0.06 | m/s2 log(cgs) |
| Planetary mean density | 4.1 ± 1.1 ( 5.4 ± 1.5 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 543 +28 −34 | K |
| Reference of detailed study | 2025A+A...698A.223L |
TOI-771 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)