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   2454930.22296 ± 0.00025     HJD or BJD
Orbital period 3.2122312 ± 0.0000012 days
Reference for orbital ephemeris   2016MNRAS.459..789T  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5302 ± 80 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.24 ± 0.08 dex
Stellar mass 0.916 ± 0.035   Msun
Stellar radius 1.040 ± 0.044 Rsun
Stellar logarithmic surface gravity 4.36 ± 0.04 c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity 0.016 ± 0.009  
Orbital semimajor axis   0.0414 ± 0.0005  AU
Planetary mass 2.147 ± 0.061
( 682 ± 19 )
Mjup
Mearth
Planetary radius 1.080 ± 0.058
( 12.11 ± 0.65 )
Rjup
Rearth
Planetary surface gravity 45.7 ± 5.3
3.66 ± 0.05
m/s2
log(cgs)
Planetary mean density 1.70 +0.32 −0.23
( 2.26 +0.42 −0.31 )
ρjup
g cm-3
Planetary equilibrium temperature 1283 ± 32 K
Reference of detailed study 2011ApJ...742..116B  

 

HAT-P-22 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

HAT-P-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)