TEPCat: Kepler-422


 

This page summarises the information held within TEPCat for the transiting planetary system Kepler-422. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2014ApJ...795..151E  
Date of discovery paper 2014 / 9 / 30 y / m / d
Right ascension 18 50 31.12 h m s
Declination +46 19 24.1 d m s
V-band apparent magnitude 13.55 mag
K-band apparent magnitude 12.04 mag
Transit duration 0.1581
( 3.794 )
day
hour
Transit depth 1.1 %
Time of mid-transit   2455010.25005 ± 0.00010     HJD or BJD
Orbital period 7.8914483 ± 0.0000005 days
Reference for orbital ephemeris   2014ApJ...795..151E  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5972 ± 84 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.23 ± 0.09 dex
Stellar mass 1.15 ± 0.06   Msun
Stellar radius 1.24 ± 0.12 Rsun
Stellar logarithmic surface gravity 4.31 ± 0.073 c.g.s.
Stellar mean density 0.61 ± 0.16
( 0.86 ± 0.23 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.082 +0.011 −0.010  AU
Planetary mass 0.43 ± 0.13
( 136 ± 41 )
Mjup
Mearth
Planetary radius 1.15 ± 0.11
( 12.9 ± 1.2 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 0.29 ± 0.08
( 0.38 ± 0.11 )
ρjup
g cm-3
Planetary equilibrium temperature K
Reference of detailed study 2014ApJ...795..151E  

 

Kepler-422 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

Kepler-422 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)