TEPCat: WASP-122


 

This page summarises the information held within TEPCat for the transiting planetary system WASP-122. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2016PASP..128f4401T  
Date of discovery paper 2015 / 9 / 9 y / m / d
Right ascension 07 13 12.34 h m s
Declination −42 24 35.1 d m s
V-band apparent magnitude 11.00 mag
K-band apparent magnitude 9.42 mag
Transit duration 0.09117
( 2.1881 )
day
hour
Transit depth 1.4 %
Time of mid-transit   2456665.22401 ± 0.00021     HJD or BJD
Orbital period 1.7100566 ± 0.0000029 days
Reference for orbital ephemeris   2016PASP..128f4401T  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5720 ± 130 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.32 ± 0.09 dex
Stellar mass 1.239 ± 0.039   Msun
Stellar radius 1.52 ± 0.03 Rsun
Stellar logarithmic surface gravity 4.166 ± 0.016 c.g.s.
Stellar mean density 0.351 ± 0.018
( 0.495 ± 0.025 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.08 −0.0  
Orbital semimajor axis   0.03005 ± 0.00031  AU
Planetary mass 1.284 ± 0.032
( 408 ± 10 )
Mjup
Mearth
Planetary radius 1.743 ± 0.047
( 19.54 ± 0.53 )
Rjup
Rearth
Planetary surface gravity 9.66 +0.50 −0.48
2.98 +0.02 −0.02
m/s2
log(cgs)
Planetary mean density 0.243 ± 0.019
( 0.322 ± 0.025 )
ρjup
g cm-3
Planetary equilibrium temperature 1970 ± 50 K
Reference of detailed study 2016PASP..128f4401T  

 

WASP-122 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

WASP-122 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2017/12/05           John Southworth   (Keele University, UK)