This page summarises the information held within TEPCat for the transiting planetary system TOI-1259. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2021MNRAS.507.4132M | |
| Date of discovery paper | 2021 / 1 / 11 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 18 48 24.07 | h m s |
| Declination | +79 15 21.8 | d m s |
| Right ascension (decimal) | 282.10029 | degrees |
| Declination (decimal) | 79.25606 | degrees |
| V-band apparent magnitude | 12.08 | mag |
| K-band apparent magnitude | 9.72 | mag |
| Transit duration | 0.10314 ( 2.4754 ) | day hour |
| Transit depth | 2.7 | % |
| Time of mid-transit | 2458686.70048 ± 0.00004 | HJD or BJD |
| Orbital period | 3.4779792 ± 0.0000001 | days |
| Reference for orbital ephemeris | arXiv:2507.07737 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 4775 ± 100 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.5 ± 0.5 | dex |
| Stellar mass | 0.748 +0.048 −0.043 | Msun |
| Stellar radius | 0.715 +0.015 −0.014 | Rsun |
| Stellar logarithmic surface gravity | 4.605 ± 0.013 | c.g.s. |
| Stellar mean density | 2.05 +0.02 −0.03 ( 2.893 +0.028 −0.042 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.132 −0.0 | |
| Orbital semimajor axis | 0.0408 ± 0.0009 | AU |
| Planetary mass | 0.415 ± 0.038 ( 131 ± 12 ) | Mjup Mearth |
| Planetary radius | 1.035 ± 0.018 ( 11.60 ± 0.20 ) | Rjup Rearth |
| Planetary surface gravity | 10.5 +1.0 −0.9 3.02 +0.04 −0.04 | m/s2 log(cgs) |
| Planetary mean density | 0.347 ± 0.030 ( 0.460 ± 0.040 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 963 ± 21 | K |
| Reference of detailed study | arXiv:2507.07737 |
| Reference | λ (degrees) |
|---|---|
| Veldhuis et al.(2025) | 6 + 21 - 22 |
Page generated on 2025/08/27 John Southworth (Keele University, UK)