This page summarises the information held within TEPCat for the transiting planetary system TOI-654. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | arXiv:2507.16222 | |
| Date of discovery paper | 2025 / 7 / 23 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 10 58 53.90 | h m s |
| Declination | −05 32 51.3 | d m s |
| Right ascension (decimal) | 164.72458 | degrees |
| Declination (decimal) | -5.54758 | degrees |
| V-band apparent magnitude | 14.54 | mag |
| K-band apparent magnitude | 9.92 | mag |
| Transit duration | 0.0500 ( 1.200 ) | day hour |
| Transit depth | 0.3 | % |
| Time of mid-transit | 2459243.0584 ± 0.0003 | HJD or BJD |
| Orbital period | 1.527561 ± 0.000001 | days |
| Reference for orbital ephemeris | arXiv:2507.16222 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3521 +33 −48 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.17 ± 0.07 | dex |
| Stellar mass | 0.419 ± 0.009 | Msun |
| Stellar radius | 0.430 ± 0.013 | Rsun |
| Stellar logarithmic surface gravity | 4.793 +0.037 −0.036 | c.g.s. |
| Stellar mean density | 5.27 +0.64 −0.57 ( 7.44 +0.90 −0.80 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.0 −0.373 | |
| Orbital semimajor axis | 0.01944 ± 0.00015 | AU |
| Planetary mass | 0.0274 ± 0.0039 ( 8.7 ± 1.2 ) | Mjup Mearth |
| Planetary radius | 0.2122 ± 0.0079 ( 2.379 ± 0.089 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 2.71 ± 0.49 ( 3.59 ± 0.65 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 794 ± 15 | K |
| Reference of detailed study | arXiv:2507.16222 |
TOI-654 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/08/27 John Southworth (Keele University, UK)