TEPCat: Kepler-31d


 

This page summarises the information held within TEPCat for the transiting planetary system Kepler-31d. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2014ApJ...784...45R  
Date of discovery paper 2012 / 1 / 27 y / m / d
Right ascension 19 36 05.52 h m s
Declination +45 51 11.1 d m s
V-band apparent magnitude 15.35 mag
K-band apparent magnitude 13.87 mag
Transit duration 0.3665
( 8.796 )
day
hour
Transit depth 0.11 %
Time of mid-transit   2454967.93828 ± 0.00468     HJD or BJD
Orbital period 87.648901 ± 0.000801 days
Reference for orbital ephemeris   2014ApJ...784...45R  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6091 +64 −65 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.08 ± 0.05 dex
Stellar mass 1.12 ± 0.06   Msun
Stellar radius 1.42 +0.23 −0.19 Rsun
Stellar logarithmic surface gravity 4.18 ± 0.11 c.g.s.
Stellar mean density 0.645 ± 0.406
( 0.91 ± 0.57 )
ρsun
g cm-3
Orbital eccentricity  
Orbital semimajor axis     AU
Planetary mass Mjup
Mearth
Planetary radius 0.443 ± 0.067
( 4.97 ± 0.75 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density ρjup
g cm-3
Planetary equilibrium temperature 506 ± 39 K
Reference of detailed study 2017AJ....154..108J  

 

Kepler-31d does not have an entry in the catalogue of orbital obliquity measurements.

 

Kepler-31d has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2018/10/12           John Southworth   (Keele University, UK)