This page summarises the information held within TEPCat for the transiting planetary system LHS 1140b. Please see here for descriptions of the quantities given below.
| Quantity | Value | Unit |
|---|---|---|
| Reference of discovery paper | 2017Natur.544..333D | |
| Date of discovery paper | 2017 / 4 / 20 | 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 | 0.08563 ( 2.0551 ) | day hour |
| Transit depth | 0.59 | % |
| Time of mid-transit | 2457187.81760 ± 0.00012 | HJD or BJD |
| Orbital period | 24.7369148 ± 0.0000058 | days |
| Reference for orbital ephemeris | 2021AJ....161...44E |
| 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 +0.06 −0.0 | |
| Orbital semimajor axis | 0.0957 ± 0.0019 | AU |
| Planetary mass | 0.0201 ± 0.0014 ( 6.39 ± 0.45 ) | Mjup Mearth |
| Planetary radius | 0.1459 ± 0.0041 ( 1.635 ± 0.046 ) | Rjup Rearth |
| Planetary surface gravity | 23.4 +1.9 −2.0 3.37 +0.03 −0.04 | m/s2 log(cgs) |
| Planetary mean density | 6.06 +0.63 −0.60 ( 8.04 +0.84 −0.80 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 379 ± 4 | K |
| Reference of detailed study | 2020A+A...642A.121L |
LHS 1140b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2023/09/01 John Southworth (Keele University, UK)