This page summarises the information held within TEPCat for the transiting planetary system TOI-4487. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2025ApJS..280...30Y | |
| Date of discovery paper | 2025 / 7 / 3 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 20 25 41.30 | h m s |
| Declination | +45 58 15.7 | d m s |
| Right ascension (decimal) | 306.42208 | degrees |
| Declination (decimal) | 45.97103 | degrees |
| V-band apparent magnitude | 12.14 | mag |
| K-band apparent magnitude | 10.56 | mag |
| Transit duration | 0.1774 ( 4.258 ) | day hour |
| Transit depth | 0.7 | % |
| Time of mid-transit | 2460082.97410 ± 0.00026 | HJD or BJD |
| Orbital period | 3.9540709 ± 0.0000020 | days |
| Reference for orbital ephemeris | 2025ApJS..280...30Y |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6176 +97 −98 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.210 +0.088 −0.089 | dex |
| Stellar mass | 1.366 +0.065 −0.066 | Msun |
| Stellar radius | 1.652 +0.051 −0.054 | Rsun |
| Stellar logarithmic surface gravity | 4.137 +0.037 −0.036 | c.g.s. |
| Stellar mean density | 0.303 +0.033 −0.035 ( 0.428 +0.047 −0.049 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.056 +0.039 −0.062 | |
| Orbital semimajor axis | 0.05431 +0.00088 −0.00086 | AU |
| Planetary mass | 1.26 ± 0.20 ( 400 ± 63 ) | Mjup Mearth |
| Planetary radius | 1.323 +0.072 −0.081 ( 14.83 + 0.81 − 0.91 ) | Rjup Rearth |
| Planetary surface gravity | 17.9 +4.2 −3.0 3.25 +0.09 −0.08 | m/s2 log(cgs) |
| Planetary mean density | 0.51 +0.11 −0.13 ( 0.68 +0.15 −0.17 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1642 +17 −18 | K |
| Reference of detailed study | 2025ApJS..280...30Y |
TOI-4487 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2026/01/29 John Southworth (Keele University, UK)