TEPCat: Kepler-42d


 

This page summarises the information held within TEPCat for the transiting planetary system Kepler-42d. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2012ApJ...747..144M  
Date of discovery paper 2012 / 1 / 11 y / m / d
Right ascension 19 28 52.57 h m s
Declination +44 37 09.0 d m s
V-band apparent magnitude 16.12 mag
K-band apparent magnitude 11.46 mag
Transit duration 0.017
( 0.41 )
day
hour
Transit depth 0.12 %
Time of mid-transit   2454964.92800 ± 0.00040     HJD or BJD
Orbital period 1.86511236 ± 0.00000073 days
Reference for orbital ephemeris   2017AJ....153..267M  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 3258 ± 21 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.50 ± 0.09 dex
Stellar mass 0.144 +0.007 −0.006   Msun
Stellar radius 0.141 ± 0.008 Rsun
Stellar logarithmic surface gravity c.g.s.
Stellar mean density 26.8 +1.8 −1.7
( 37.8 + 2.5 − 2.4 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.24 −0.0  
Orbital semimajor axis     AU
Planetary mass 0.0 +0.0028 −0.0
( 0.00 +0.89 −0.00 )
Mjup
Mearth
Planetary radius 0.060 +0.004 −0.003
( 0.673 +0.045 −0.034 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density ρjup
g cm-3
Planetary equilibrium temperature K
Reference of detailed study 2017AJ....153..267M  

 

Kepler-42d does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

Kepler-42d has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2017/12/12           John Southworth   (Keele University, UK)