TEPCat: WASP-142


 

This page summarises the information held within TEPCat for the transiting planetary system WASP-142. 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 09 22 01.43 h m s
Declination −23 56 45.8 d m s
V-band apparent magnitude 12.30 mag
K-band apparent magnitude 11.44 mag
Transit duration 0.1117
( 2.681 )
day
hour
Transit depth 0.9 %
Time of mid-transit   2457007.7779 ± 0.0004     HJD or BJD
Orbital period 2.052868 ± 0.000002 days
Reference for orbital ephemeris   2017MNRAS.465.3693H  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6060 ± 150 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.26 ± 0.12 dex
Stellar mass 1.33 ± 0.08   Msun
Stellar radius 1.64 ± 0.08 Rsun
Stellar logarithmic surface gravity 4.13 ± 0.04 c.g.s.
Stellar mean density 0.30 ± 0.04
( 0.423 ± 0.056 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.27 −0.0  
Orbital semimajor axis   0.0347 ± 0.0007  AU
Planetary mass 0.84 ± 0.09
( 267 ± 28 )
Mjup
Mearth
Planetary radius 1.53 ± 0.08
( 17.15 ± 0.90 )
Rjup
Rearth
Planetary surface gravity 8.1 +1.2 −1.0
2.91 +0.06 −0.06
m/s2
log(cgs)
Planetary mean density 0.23 ± 0.05
( 0.305 ± 0.066 )
ρjup
g cm-3
Planetary equilibrium temperature 2000 ± 60 K
Reference of detailed study 2017MNRAS.465.3693H  

 

WASP-142 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

WASP-142 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


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