This page summarises the information held within TEPCat for the transiting planetary system LHS 1140c. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2019AJ....157...32M | |
| Date of discovery paper | 2018 / 8 / 2 | y / m / d |
| Data/telescope used for discovery | MEarth | |
| Right ascension | 00 44 59.31 | h m s |
| Declination | −15 16 16.7 | d m s |
| Right ascension (decimal) | 11.24712 | degrees |
| Declination (decimal) | -15.27131 | degrees |
| V-band apparent magnitude | 14.15 | mag |
| K-band apparent magnitude | 8.82 | mag |
| Transit duration | 0.04583 ( 1.0999 ) | day hour |
| Transit depth | 0.25 | % |
| Time of mid-transit | 2458389.29382 ± 0.00082 | HJD or BJD |
| Orbital period | 3.777929 ± 0.000030 | days |
| Reference for orbital ephemeris | 2020A+A...642A.121L |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3216 ± 39 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.24 ± 0.10 | dex |
| Stellar mass | 0.191 +0.012 −0.011 | Msun |
| Stellar radius | 0.2134 +0.0036 −0.0034 | Rsun |
| Stellar logarithmic surface gravity | c.g.s. | |
| Stellar mean density | ρsun g cm-3 | |
| Orbital eccentricity | 0.0 +0.252 −0.0 | |
| Orbital semimajor axis | 0.02734 ± 0.00054 | AU |
| Planetary mass | 0.0055 ± 0.0005 ( 1.75 ± 0.16 ) | Mjup Mearth |
| Planetary radius | 0.1043 +0.0033 −0.0034 ( 1.169 +0.037 −0.038 ) | Rjup Rearth |
| Planetary surface gravity | 12.6 +1.4 −1.3 3.10 +0.05 −0.05 | m/s2 log(cgs) |
| Planetary mean density | 4.58 +0.61 −0.56 ( 6.08 +0.81 −0.74 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 709 ± 8 | K |
| Reference of detailed study | 2020A+A...642A.121L |
LHS 1140c does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2023/09/01 John Southworth (Keele University, UK)