This page summarises the information held within TEPCat for the transiting planetary system TOI-899. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | arXiv:2602.16646 | |
| Date of discovery paper | 2026 / 2 / 19 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 06 57 58.19 | h m s |
| Declination | −70 31 23.2 | d m s |
| Right ascension (decimal) | 104.49246 | degrees |
| Declination (decimal) | -70.52311 | degrees |
| V-band apparent magnitude | 12.25 | mag |
| K-band apparent magnitude | 10.51 | mag |
| Transit duration | 0.19 ( 4.6 ) | day hour |
| Transit depth | 0.9 | % |
| Time of mid-transit | 2458313.63758 ± 0.00044 | HJD or BJD |
| Orbital period | 12.846185 ± 0.000008 | days |
| Reference for orbital ephemeris | arXiv:2602.16646 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5696 ± 80 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.10 ± 0.04 | dex |
| Stellar mass | 0.972 +0.054 −0.053 | Msun |
| Stellar radius | 1.086 +0.013 −0.012 | Rsun |
| Stellar logarithmic surface gravity | 4.355 ± 0.022 | c.g.s. |
| Stellar mean density | 0.76 +0.08 −0.07 ( 1.072 +0.113 −0.099 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.218 +0.054 −0.057 | |
| Orbital semimajor axis | 0.1063 ± 0.0026 | AU |
| Planetary mass | 0.213 ± 0.024 ( 67.7 ± 7.6 ) | Mjup Mearth |
| Planetary radius | 0.991 ± 0.044 ( 11.11 ± 0.49 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 1040 ± 19 | K |
| Reference of detailed study | arXiv:2602.16646 |
TOI-899 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2026/02/19 John Southworth (Keele University, UK)