TEPCat: WASP-118


 

This page summarises the information held within TEPCat for the transiting planetary system WASP-118. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2016MNRAS.463.3276H  
Date of discovery paper 2016 / 7 / 5 y / m / d
Right ascension 01 18 12.12 h m s
Declination +02 42 10.2 d m s
V-band apparent magnitude 11.02 mag
K-band apparent magnitude 9.79 mag
Transit duration 0.20464
( 4.9114 )
day
hour
Transit depth 0.8 %
Time of mid-transit   2457423.044825 ± 0.000020     HJD or BJD
Orbital period 4.0460407 ± 0.0000026 days
Reference for orbital ephemeris   2017MNRAS.469.1622M  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6410 ± 125 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.16 ± 0.11 dex
Stellar mass 1.319 ± 0.035   Msun
Stellar radius 1.754 ± 0.016 Rsun
Stellar logarithmic surface gravity 4.100 ± 0.012 c.g.s.
Stellar mean density 0.2474 ± 0.0029
( 0.3491 ± 0.0041 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.028 −0.0  
Orbital semimajor axis   0.05450 ± 0.00049  AU
Planetary mass 0.52 ± 0.18
( 165 ± 57 )
Mjup
Mearth
Planetary radius 1.394 ± 0.013
( 15.63 ± 0.15 )
Rjup
Rearth
Planetary surface gravity 5.71 +0.55 −0.50
2.76 +0.04 −0.04
m/s2
log(cgs)
Planetary mean density 0.193 ± 0.066
( 0.256 ± 0.088 )
ρjup
g cm-3
Planetary equilibrium temperature 1753 ± 34 K
Reference of detailed study 2017MNRAS.469.1622M  

 

WASP-118 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

WASP-118 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2017/12/15           John Southworth   (Keele University, UK)