TEPCat: LHS 1140b


 

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.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2017Natur.544..333D  
Date of discovery paper 2017 / 4 / 20 y / m / d
Right ascension 00 44 59.31 h m s
Declination −15 16 16.7 d m s
V-band apparent magnitude 14.15 mag
K-band apparent magnitude 8.82 mag
Transit duration 0.087
( 2.09 )
day
hour
Transit depth 0.58 %
Time of mid-transit   2456915.71154 ± 0.00004     HJD or BJD
Orbital period 24.736959 ± 0.000080 days
Reference for orbital ephemeris   arXiv:1808.00485  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 3216 ± 39 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.24 ± 0.10 dex
Stellar mass 0.179 ± 0.014   Msun
Stellar radius 0.2139 ± 0.0041 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   0.0936 ± 0.0024  AU
Planetary mass 0.0220 ± 0.0028
( 6.99 ± 0.89 )
Mjup
Mearth
Planetary radius 0.1541 ± 0.0029
( 1.727 ± 0.033 )
Rjup
Rearth
Planetary surface gravity 23.7 ± 2.7
3.37 ± 0.05
m/s2
log(cgs)
Planetary mean density 5.65 ± 0.75
( 7.49 ± 0.99 )
ρjup
g cm-3
Planetary equilibrium temperature 235 ± 5 K
Reference of detailed study arXiv:1808.00485  

 

LHS 1140b does not have an entry in the catalogue of orbital obliquity measurements.

 

LHS 1140b has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2019/07/16           John Southworth   (Keele University, UK)