This page summarises the information held within TEPCat for the transiting planetary system LP 791-18b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2019ApJ...883L..16C | |
| Date of discovery paper | 2019 / 6 / 25 | y / m / d |
| Data/telescope used for discovery | TESS | |
| Right ascension | 11 02 45.96 | h m s |
| Declination | −16 24 22.3 | d m s |
| Right ascension (decimal) | 165.69150 | degrees |
| Declination (decimal) | -16.40619 | degrees |
| V-band apparent magnitude | 16.9 | mag |
| K-band apparent magnitude | 10.64 | mag |
| Transit duration | 0.0225 ( 0.540 ) | day hour |
| Transit depth | 1.7 | % |
| Time of mid-transit | 2458645.94405 ± 0.00066 | HJD or BJD |
| Orbital period | 0.9480050 ± 0.0000058 | days |
| Reference for orbital ephemeris | 2019ApJ...883L..16C |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 2960 ± 55 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.09 ± 0.19 | dex |
| Stellar mass | 0.139 ± 0.005 | Msun |
| Stellar radius | 0.171 ± 0.018 | Rsun |
| Stellar logarithmic surface gravity | 5.115 ± 0.094 | c.g.s. |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | ||
| Orbital semimajor axis | 0.00969 +0.00032 −0.00035 | AU |
| Planetary mass | Mjup Mearth | |
| Planetary radius | 0.100 +0.012 −0.001 ( 1.121 +0.135 −0.011 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | ρjup g cm-3 | |
| Planetary equilibrium temperature | 650 ± 120 | K |
| Reference of detailed study | 2019ApJ...883L..16C |
LP 791-18b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2024/09/10 John Southworth (Keele University, UK)