This page summarises the information held within TEPCat for the transiting planetary system TOI-1243. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | arXiv:2601.07414 | |
| Date of discovery paper | 2026 / 1 / 13 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 09 02 55.82 | h m s |
| Declination | +71 38 11.3 | d m s |
| Right ascension (decimal) | 135.73258 | degrees |
| Declination (decimal) | 71.63647 | degrees |
| V-band apparent magnitude | 13.43 | mag |
| K-band apparent magnitude | 8.88 | mag |
| Transit duration | 0.04 ( 1.0 ) | day hour |
| Transit depth | 0.2 | % |
| Time of mid-transit | 2459369.83103 ± 0.00028 | HJD or BJD |
| Orbital period | 4.6594779 ± 0.0000044 | days |
| Reference for orbital ephemeris | arXiv:2601.07414 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3515 ± 79 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.20 ± 0.16 | dex |
| Stellar mass | 0.515 ± 0.027 | Msun |
| Stellar radius | 0.511 ± 0.024 | Rsun |
| Stellar logarithmic surface gravity | 4.73 ± 0.12 | c.g.s. |
| Stellar mean density | 3.8 ± 0.6 ( 5.36 ± 0.85 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | AU | |
| Planetary mass | 0.024 ± 0.005 ( 7.6 ± 1.6 ) | Mjup Mearth |
| Planetary radius | 0.208 ± 0.011 ( 2.33 ± 0.12 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 2.5 +0.6 −0.0 ( 3.32 +0.80 −0.00 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 450 +22 −19 | K |
| Reference of detailed study | arXiv:2601.07414 |
TOI-1243 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2026/01/29 John Southworth (Keele University, UK)