This page summarises the information held within TEPCat for the transiting brown dwarf system TOI-2844. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | arXiv:2501.09795 | |
| Date of discovery paper | 2025 / 1 / 20 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 07 20 48.78 | h m s |
| Declination | +13 01 07.4 | d m s |
| Right ascension (decimal) | 110.20325 | degrees |
| Declination (decimal) | 13.01872 | degrees |
| V-band apparent magnitude | 11.48 | mag |
| K-band apparent magnitude | 10.93 | mag |
| Transit duration | 0.1258 ( 3.019 ) | day hour |
| Transit depth | 0.2 | % |
| Time of mid-transit | 2459940.21326 ± 0.00091 | HJD or BJD |
| Orbital period | 3.5524204 ± 0.000003 | days |
| Reference for orbital ephemeris | arXiv:2501.09795 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6910 ± 210 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.06 +0.12 −0.09 | dex |
| Stellar mass | 1.585 +0.071 −0.072 | Msun |
| Stellar radius | 1.784 +0.085 −0.080 | Rsun |
| Stellar logarithmic surface gravity | 4.135 +0.048 −0.051 | c.g.s. |
| Stellar mean density | 0.279 +0.046 −0.042 ( 0.394 +0.065 −0.059 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.424 +0.046 −0.041 | |
| Orbital semimajor axis | 0.0537 ± 0.0008 | AU |
| Planetary mass | 54.0 +4.9 −5.0 ( 17166 +1558 −1589 ) | Mjup Mearth |
| Planetary radius | 0.775 +0.047 −0.043 ( 8.69 +0.53 −0.48 ) | Rjup Rearth |
| Planetary surface gravity | 2220 +360 −330 5.35 +0.07 −0.07 | m/s2 log(cgs) |
| Planetary mean density | 108 +23 −20 ( 143 + 30 − 26 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1919 +37 −33 | K |
| Reference of detailed study | arXiv:2501.09795 |
TOI-2844 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/24 John Southworth (Keele University, UK)