TEPCat: WASP-22


 

This page summarises the information held within TEPCat for the transiting planetary system WASP-22. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2010AJ....140.2007M  
Date of discovery paper 2010 / 4 / 9 y / m / d
Right ascension 03 31 16.32 h m s
Declination −23 49 10.9 d m s
V-band apparent magnitude 11.71 mag
K-band apparent magnitude 10.32 mag
Transit duration 0.1450
( 3.480 )
day
hour
Transit depth 1.2 %
Time of mid-transit   2455532.72776 ± 0.00022     HJD or BJD
Orbital period 3.53273064 ± 0.00000070 days
Reference for orbital ephemeris   2016MNRAS.457.4205S  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6153 ± 46 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.26 ± 0.03 dex
Stellar mass 1.249 +0.075 −0.033   Msun
Stellar radius 1.255 ± 0.030 Rsun
Stellar logarithmic surface gravity 4.338 +0.027 −0.020 c.g.s.
Stellar mean density 0.632 +0.043 −0.041
( 0.892 +0.061 −0.058 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.063 −0.0  
Orbital semimajor axis   0.0489 ± 0.0010  AU
Planetary mass 0.617 +0.028 −0.018
( 196.14 +8.90 −5.72 )
Mjup
Mearth
Planetary radius 1.199 +0.046 −0.027
( 13.44 + 0.52 − 0.30 )
Rjup
Rearth
Planetary surface gravity 10.63 +0.53 −0.71
3.03 +0.02 −0.03
m/s2
log(cgs)
Planetary mean density 0.334 +0.024 −0.033
( 0.443 +0.032 −0.044 )
ρjup
g cm-3
Planetary equilibrium temperature 1502 ± 20 K
Reference of detailed study 2016MNRAS.457.4205S  

 

Entries in the catalogue of Rossiter-McLaughlin measurements:
 
Reference λ (degrees)
Anderson et al. (2011)   22   ±   16  

 

 

WASP-22 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)