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 | 2459399.9300 ± 0.0003 | HJD or BJD |
| Orbital period | 24.73723 ± 0.00002 | days |
| Reference for orbital ephemeris | arXiv:2310.15490 |
| Quantity | Value | Unit |
|---|---|---|
| Stellar effective temperature | 3096 ± 48 | K |
| Stellar metal abundance ([Fe/H] or [M/H]) | −0.15 ± 0.09 | dex |
| Stellar mass | 0.1844 ± 0.0045 | Msun |
| Stellar radius | 0.2159 ± 0.0030 | Rsun |
| Stellar logarithmic surface gravity | 5.041 ± 0.016 | c.g.s. |
| Stellar mean density | 18.3 ± 0.7 ( 25.82 ± 0.99 ) | ρsun g cm-3 |
| Orbital eccentricity | 0.0 +0.043 −0.0 | |
| Orbital semimajor axis | 0.0946 ± 0.0017 | AU |
| Planetary mass | 0.0176 ± 0.0006 ( 5.59 ± 0.19 ) | Mjup Mearth |
| Planetary radius | 0.1543 ± 0.0022 ( 1.730 ± 0.025 ) | Rjup Rearth |
| Planetary surface gravity | m/s2 log(cgs) | |
| Planetary mean density | 4.4 ± 0.2 ( 5.84 ± 0.27 ) | ρjup g cm-3 |
| Planetary equilibrium temperature | 226 ± 4 | K |
| Reference of detailed study | arXiv:2310.15490 |
LHS 1140b does not have an entry in the catalogue of orbital obliquity measurements.
Page generated on 2025/03/17 John Southworth (Keele University, UK)