This page summarises the information held within TEPCat for the transiting brown dwarf system TOI-5389. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | arXiv:2501.16554 | |
| Date of discovery paper | 2024 / 1 / 29 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 11 15 12.40 | h m s |
| Declination | +39 21 32.1 | d m s |
| Right ascension (decimal) | 168.80167 | degrees |
| Declination (decimal) | 39.35892 | degrees |
| V-band apparent magnitude | 17.09 | mag |
| K-band apparent magnitude | 12.56 | mag |
| Transit duration | 0.09 ( 2.2 ) | day hour |
| Transit depth | 4.0 | % |
| Time of mid-transit | 2459609.4450 ± 0.0010 | HJD or BJD |
| Orbital period | 10.40046 ± 0.00002 | days |
| Reference for orbital ephemeris | arXiv:2501.16554 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3569 ± 59 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.15 ± 0.06 | dex |
| Stellar mass | 0.43 ± 0.02 | Msun |
| Stellar radius | 0.42 ± 0.02 | Rsun |
| Stellar logarithmic surface gravity | 4.79 ± 0.04 | c.g.s. |
| Stellar mean density | 5.80 ± 0.87 ( 8.2 ± 1.2 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.096 +0.003 −0.005 | |
| Orbital semimajor axis | 0.0739 ± 0.0010 | AU |
| Planetary mass | 68.0 ± 2.2 ( 216165 ± 6994 ) | Mjup Mearth |
| Planetary radius | 0.776 +0.035 −0.033 ( 8.70 +0.39 −0.37 ) | Rjup Rearth |
| Planetary surface gravity | 2480 ± 180 5.39 ± 0.03 | m/s2 log(cgs) |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | K | |
| Reference of detailed study | arXiv:2501.16554 |
TOI-5389 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/17 John Southworth (Keele University, UK)