This page summarises the information held within TEPCat for the transiting planetary system TOI-640. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2021AJ....161..194R | |
| Date of discovery paper | 2021 / 1 / 7 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 06 38 56.31 | h m s |
| Declination | −36 38 46.1 | d m s |
| Right ascension (decimal) | 99.73462 | degrees |
| Declination (decimal) | -36.64614 | degrees |
| V-band apparent magnitude | 10.57 | mag |
| K-band apparent magnitude | 9.24 | mag |
| Transit duration | 0.1540 ( 3.696 ) | day hour |
| Transit depth | 0.8 | % |
| Time of mid-transit | 2458459.7413 ± 0.0003 | HJD or BJD |
| Orbital period | 5.003777 ± 0.000003 | days |
| Reference for orbital ephemeris | 2023A+A...671A.164K |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 6460 +130 −150 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.072 +0.085 −0.076 | dex |
| Stellar mass | 1.536 +0.069 −0.076 | Msun |
| Stellar radius | 2.082 +0.064 −0.058 | Rsun |
| Stellar logarithmic surface gravity | 3.987 +0.030 −0.036 | c.g.s. |
| Stellar mean density | 0.170 +0.017 −0.018 ( 0.240 +0.024 −0.025 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.013 −0.0 | |
| Orbital semimajor axis | 0.06608 +0.00098 −0.0011 | AU |
| Planetary mass | 0.57 ± 0.02 ( 181.20 ± 6.36 ) | Mjup Mearth |
| Planetary radius | 1.72 ± 0.05 ( 19.28 ± 0.56 ) | Rjup Rearth |
| Planetary surface gravity | 6.9 ± 1.4 2.84 ± 0.08 | m/s2 log(cgs) |
| Planetary mean density | 0.104 ± 0.010 ( 0.138 ± 0.013 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1816 ± 39 | K |
| Reference of detailed study | 2023A+A...671A.164K |
| Reference | λ (degrees) |
|---|---|
| Knudstrup et al. (2023) | 184 ± 3 |
Page generated on 2025/03/24 John Southworth (Keele University, UK)