This page summarises the information held within TEPCat for the transiting planetary system TOI-157. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2020A+A...639A..76N | |
| Date of discovery paper | 2020 / 3 / 13 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 04 54 48.34 | h m s |
| Declination | −76 40 50.2 | d m s |
| Right ascension (decimal) | 73.70142 | degrees |
| Declination (decimal) | -76.68061 | degrees |
| V-band apparent magnitude | 12.73 | mag |
| K-band apparent magnitude | 10.89 | mag |
| Transit duration | 0.08941 ( 2.1458 ) | day hour |
| Transit depth | 1.3 | % |
| Time of mid-transit | 2458326.54771 ± 0.00022 | HJD or BJD |
| Orbital period | 2.0845435 ± 0.0000023 | days |
| Reference for orbital ephemeris | 2020A+A...639A..76N |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 5404 +70 −67 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | +0.24 ± 0.09 | dex |
| Stellar mass | 0.948 +0.023 −0.018 | Msun |
| Stellar radius | 1.167 +0.017 −0.014 | Rsun |
| Stellar logarithmic surface gravity | 4.281 ± 0.011 | c.g.s. |
| Stellar mean density | 0.597 ± 0.021 ( 0.842 ± 0.030 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.21 −0.0 | |
| Orbital semimajor axis | 0.03138 +0.00025 −0.00021 | AU |
| Planetary mass | 1.18 +0.13 −0.12 ( 375 +41 −38 ) | Mjup Mearth |
| Planetary radius | 1.286 +0.023 −0.020 ( 14.41 + 0.26 − 0.22 ) | Rjup Rearth |
| Planetary surface gravity | 17.7 +2.0 −1.9 3.25 +0.05 −0.05 | m/s2 log(cgs) |
| Planetary mean density | 0.517 +0.060 −0.059 ( 0.686 +0.080 −0.078 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 1588 +21 −20 | K |
| Reference of detailed study | 2020A+A...639A..76N |
TOI-157 does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/24 John Southworth (Keele University, UK)