TEPCat: Kepler-117b


 

This page summarises the information held within TEPCat for the transiting planetary system Kepler-117b. 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 2014 / 3 / 20 y / m / d
Right ascension 19 15 10.33 h m s
Declination +48 02 24.8 d m s
V-band apparent magnitude 14.48 mag
K-band apparent magnitude 13.01 mag
Transit duration 0.3024
( 7.258 )
day
hour
Transit depth 0.24 %
Time of mid-transit   2454978.82204 ± 0.00035     HJD or BJD
Orbital period 18.7959228 ± 0.0000075 days
Reference for orbital ephemeris   2015A+A...573A.124B  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6150 ± 110 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.04 ± 0.10 dex
Stellar mass 1.129 +0.013 −0.023   Msun
Stellar radius 1.606 ± 0.049 Rsun
Stellar logarithmic surface gravity 4.102 ± 0.029 c.g.s.
Stellar mean density 0.291 +0.010 −0.018
( 0.411 +0.014 −0.025 )
ρsun
g cm-3
Orbital eccentricity 0.0493 ± 0.0062  
Orbital semimajor axis   0.1445 +0.0047 −0.0014  AU
Planetary mass 0.094 ± 0.033
( 29 ± 10 )
Mjup
Mearth
Planetary radius 0.719 ± 0.024
( 8.06 ± 0.27 )
Rjup
Rearth
Planetary surface gravity 4.7 +1.2 −1.5
2.67 +0.10 −0.17
m/s2
log(cgs)
Planetary mean density 0.23 ± 0.08
( 0.31 ± 0.11 )
ρjup
g cm-3
Planetary equilibrium temperature 984 ± 18 K
Reference of detailed study 2015A+A...573A.124B  

 

Kepler-117b does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

Kepler-117b 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)