TEPCat: Kepler-442b


 

This page summarises the information held within TEPCat for the transiting planetary system Kepler-442b. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2015ApJ...800...99T  
Date of discovery paper 2015 / 1 / 7 y / m / d
Right ascension 19 01 27.98 h m s
Declination +39 16 48.3 d m s
V-band apparent magnitude 15.33 mag
K-band apparent magnitude 12.49 mag
Transit duration 0.234
( 5.62 )
day
hour
Transit depth 0.06 %
Time of mid-transit   2455849.5578 ± 0.0067     HJD or BJD
Orbital period 112.3053 ± 0.0024 days
Reference for orbital ephemeris   2015ApJ...800...99T  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 4402 ± 100 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.37 ± 0.10 dex
Stellar mass 0.609 +0.030 −0.026   Msun
Stellar radius 0.598 +0.023 −0.024 Rsun
Stellar logarithmic surface gravity 4.673 +0.018 −0.021 c.g.s.
Stellar mean density 2.84 +0.26 −0.21
( 4.01 +0.37 −0.30 )
ρsun
g cm-3
Orbital eccentricity 0.04 +0.08 −0.04  
Orbital semimajor axis   0.409 +0.209 −0.060  AU
Planetary mass Mjup
Mearth
Planetary radius 0.120 +0.010 −0.016
( 1.35 +0.11 −0.18 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density ρjup
g cm-3
Planetary equilibrium temperature K
Reference of detailed study 2015ApJ...800...99T  

 

Kepler-442b does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

Kepler-442b 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)