This page summarises the information held within TEPCat for the transiting planetary system TOI-159. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | arXiv:2605.04149 | |
| Date of discovery paper | 2026 / 5 / 7 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 03 27 07.68 | h m s |
| Declination | −78 32 59.4 | d m s |
| Right ascension (decimal) | 51.78200 | degrees |
| Declination (decimal) | -78.54983 | degrees |
| V-band apparent magnitude | 10.93 | mag |
| K-band apparent magnitude | 9.76 | mag |
| Transit duration | 0.176 ( 4.22 ) | day hour |
| Transit depth | 1.1 | % |
| Time of mid-transit | 2459382.23258 ± 0.00009 | HJD or BJD |
| Orbital period | 3.7628396 ± 0.0000003 | days |
| Reference for orbital ephemeris | arXiv:2605.04149 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 7294 ± 70 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.26 ± 0.04 | dex |
| Stellar mass | 1.661 +0.017 −0.019 | Msun |
| Stellar radius | 1.620 ± 0.014 | Rsun |
| Stellar logarithmic surface gravity | 4.43 ± 0.05 | c.g.s. |
| Stellar mean density | 0.39 ± 0.01 ( 0.550 ± 0.014 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.24 +0.03 −0.04 | |
| Orbital semimajor axis | 0.0560 ± 0.0007 | AU |
| Planetary mass | 3.49 ± 0.26 ( 1109 ± 82 ) | Mjup Mearth |
| Planetary radius | 1.622 ± 0.015 ( 18.18 ± 0.17 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 0.769 ± 0.060 ( 1.020 ± 0.080 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1891 ± 23 | K |
| Reference of detailed study | arXiv:2605.04149 |
TOI-159 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2026/06/23 John Southworth (Keele University, UK)