TEPCat: Kepler-4


 

This page summarises the information held within TEPCat for the transiting planetary system Kepler-4. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2010ApJ...713L.126B  
Date of discovery paper 2010 / 1 / 6 y / m / d
Right ascension 19 02 27.68 h m s
Declination +50 08 08.7 d m s
V-band apparent magnitude 12.09 mag
K-band apparent magnitude 10.80 mag
Transit duration 0.1650
( 3.960 )
day
hour
Transit depth 0.087 %
Time of mid-transit   2454956.61132 ± 0.00092     HJD or BJD
Orbital period 3.213658 ± 0.000038 days
Reference for orbital ephemeris   2011MNRAS.417.2166S  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5857 ± 120 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.17 ± 0.06 dex
Stellar mass 1.173 +0.196 −0.100   Msun
Stellar radius 1.48 +0.33 −0.13 Rsun
Stellar logarithmic surface gravity 4.168 +0.063 −0.133 c.g.s.
Stellar mean density 0.362 +0.081 −0.136
( 0.51 +0.11 −0.19 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.0449 +0.0024 −0.0012  AU
Planetary mass 0.075 +0.013 −0.011
( 23.8 +4.1 −3.5 )
Mjup
Mearth
Planetary radius 0.368 +0.074 −0.034
( 4.12 +0.83 −0.38 )
Rjup
Rearth
Planetary surface gravity 13.8 +3.3 −4.5
3.14 +0.09 −0.17
m/s2
log(cgs)
Planetary mean density 1.41 +0.48 −0.62
( 1.87 +0.64 −0.82 )
ρjup
g cm-3
Planetary equilibrium temperature 1620 +140 −60 K
Reference of detailed study 2011MNRAS.417.2166S  

 

Kepler-4 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

Kepler-4 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)