TEPCat: LP 791-18b


 

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.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:1906.09267  
Date of discovery paper 2019 / 6 / 25 y / m / d
Right ascension 11 02 45.96 h m s
Declination −16 24 22.3 d m s
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   arXiv:1906.09267  

 

Physical properties from the most recent detailed study:
 
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 arXiv:1906.09267  

 

LP 791-18b does not have an entry in the catalogue of orbital obliquity measurements.

 

LP 791-18b has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2021/12/02           John Southworth   (Keele University, UK)