This page summarises the information held within TEPCat for the transiting planetary system TOI-5817. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | arXiv:2505.10123 | |
| Date of discovery paper | 2025 / 5 / 16 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 21 29 30.66 | h m s |
| Declination | 21 28 28.3 | d m s |
| Right ascension (decimal) | 322.37775 | degrees |
| Declination (decimal) | 21.47453 | degrees |
| V-band apparent magnitude | 8.71 | mag |
| K-band apparent magnitude | 7.08 | mag |
| Transit duration | 0.250 ( 6.00 ) | day hour |
| Transit depth | 0.05 | % |
| Time of mid-transit | 2459799.3065 ± 0.0029 | HJD or BJD |
| Orbital period | 15.61031 ± 0.00011 | days |
| Reference for orbital ephemeris | arXiv:2505.10123 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5770 ± 50 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.24 ± 0.09 | dex |
| Stellar mass | 0.970 +0.072 −0.055 | Msun |
| Stellar radius | 1.427 +0.043 −0.040 | Rsun |
| Stellar logarithmic surface gravity | 4.12 ± 0.04 | c.g.s. |
| Stellar mean density | 0.33 ± 0.04 ( 0.466 ± 0.056 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.20 −0.0 | |
| Orbital semimajor axis | 0.1223 ± 0.0060 | AU |
| Planetary mass | 0.0324 +0.0044 −0.0041 ( 10.3 +1.4 −1.3 ) | Mjup Mearth |
| Planetary radius | 0.248 ± 0.012 ( 2.78 ± 0.13 ) | Rjup Rearth |
| Planetary surface gravity | 11 ± 2 3.04 ± 0.07 | m/s2 log(cgs) |
| Planetary mean density | 1.46 +0.31 −0.26 ( 1.94 +0.41 −0.34 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 950 +21 −18 | K |
| Reference of detailed study | arXiv:2505.10123 |
TOI-5817 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)