TEPCat: WASP-140


 

This page summarises the information held within TEPCat for the transiting planetary system WASP-140. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2017MNRAS.465.3693H  
Date of discovery paper 2016 / 4 / 15 y / m / d
Right ascension 04 01 32.53 h m s
Declination −20 27 03.9 d m s
V-band apparent magnitude 11.13 mag
K-band apparent magnitude 9.17 mag
Transit duration 0.0631
( 1.514 )
day
hour
Transit depth 1.9 %
Time of mid-transit   2456912.35105 ± 0.00015     HJD or BJD
Orbital period 2.2359835 ± 0.0000008 days
Reference for orbital ephemeris   2017MNRAS.465.3693H  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5300 ± 100 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.12 ± 0.10 dex
Stellar mass 0.90 ± 0.04   Msun
Stellar radius 0.87 ± 0.04 Rsun
Stellar logarithmic surface gravity 4.51 ± 0.04 c.g.s.
Stellar mean density 1.38 ± 0.18
( 1.95 ± 0.25 )
ρsun
g cm-3
Orbital eccentricity 0.0470 ± 0.0035  
Orbital semimajor axis   0.0323 ± 0.0005  AU
Planetary mass 2.44 ± 0.07
( 775 ± 22 )
Mjup
Mearth
Planetary radius 1.44 +0.42 −0.18
( 16.1 + 4.7 − 2.0 )
Rjup
Rearth
Planetary surface gravity 25 +15 −9
3.4 +0.2 −0.2
m/s2
log(cgs)
Planetary mean density 0.8 ± 0.4
( 1.06 ± 0.53 )
ρjup
g cm-3
Planetary equilibrium temperature 1320 ± 40 K
Reference of detailed study 2017MNRAS.465.3693H  

 

WASP-140 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

WASP-140 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2017/12/11           John Southworth   (Keele University, UK)