This page summarises the information held within TEPCat for the transiting planetary system TOI-1789. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2022MNRAS.509.3339K | |
| Date of discovery paper | 2021 / 6 / 17 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 09 30 58.42 | h m s |
| Declination | +26 32 24.0 | d m s |
| Right ascension (decimal) | 142.74342 | degrees |
| Declination (decimal) | 26.54000 | degrees |
| V-band apparent magnitude | 9.79 | mag |
| K-band apparent magnitude | 8.35 | mag |
| Transit duration | 0.0957 ( 2.297 ) | day hour |
| Transit depth | 0.3 | % |
| Time of mid-transit | 2458873.65374 ± 0.00062 | HJD or BJD |
| Orbital period | 3.208664 ± 0.000015 | days |
| Reference for orbital ephemeris | 2022MNRAS.509.3339K |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5991 ± 55 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.373 +0.071 −0.086 | dex |
| Stellar mass | 1.507 +0.059 −0.14 | Msun |
| Stellar radius | 2.168 +0.036 −0.034 | Rsun |
| Stellar logarithmic surface gravity | 3.943 +0.023 −0.043 | c.g.s. |
| Stellar mean density | 0.147 +0.010 −0.015 ( 0.207 +0.014 −0.021 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 | |
| Orbital semimajor axis | 0.04882 +0.00061 −0.0016 | AU |
| Planetary mass | 0.70 ± 0.16 ( 222 ± 50 ) | Mjup Mearth |
| Planetary radius | 1.44 +0.24 −0.14 ( 16.1 + 2.7 − 1.6 ) | Rjup Rearth |
| Planetary surface gravity | 8.1 +3.1 −2.8 2.9 +0.1 −0.2 | m/s2 log(cgs) |
| Planetary mean density | 0.21 +0.11 −0.10 ( 0.28 +0.15 −0.13 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1927 +27 −17 | K |
| Reference of detailed study | 2022MNRAS.509.3339K |
TOI-1789 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/24 John Southworth (Keele University, UK)