TEPCat: HAT-P-22


 

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

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2011ApJ...742..116B  
Date of discovery paper 2010 / 8 / 23 y / m / d
Right ascension 10 22 43.51 h m s
Declination +50 07 42.0 d m s
V-band apparent magnitude 9.73 mag
K-band apparent magnitude 7.84 mag
Transit duration 0.1196
( 2.870 )
day
hour
Transit depth 1.5 %
Time of mid-transit   2454930.22016 ± 0.00016     HJD or BJD
Orbital period 3.21223328 ± 0.00000058 days
Reference for orbital ephemeris   2016MNRAS.459..789T  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5314 ± 50 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.30 ± 0.09 dex
Stellar mass 0.936 ± 0.043   Msun
Stellar radius 1.062 ± 0.048 Rsun
Stellar logarithmic surface gravity 4.357 ± 0.039 c.g.s.
Stellar mean density 0.781 ± 0.099
( 1.10 ± 0.14 )
ρsun
g cm-3
Orbital eccentricity 0.016 ± 0.009  
Orbital semimajor axis   0.04171 ± 0.00065  AU
Planetary mass 2.192 ± 0.077
( 696 ± 24 )
Mjup
Mearth
Planetary radius 1.060 ± 0.073
( 11.88 ± 0.82 )
Rjup
Rearth
Planetary surface gravity 48.3 ± 6.6
3.68 ± 0.06
m/s2
log(cgs)
Planetary mean density 1.72 ± 0.35
( 2.28 ± 0.46 )
ρjup
g cm-3
Planetary equilibrium temperature 1293 ± 29 K
Reference of detailed study 2018A+A...613A..41M  

 

Entries in the catalogue of orbital obliquity measurements:
 
Reference λ (degrees)
Mancini et al. (2018)   −2.1   ±   3.0  

 

 

HAT-P-22 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2018/07/17           John Southworth   (Keele University, UK)