TEPCat: KELT-4


 

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

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2016AJ....151...45E  
Date of discovery paper 2015 / 10 / 2 y / m / d
Right ascension 10 28 15.01 h m s
Declination +25 34 23.5 d m s
V-band apparent magnitude 10.47 mag
K-band apparent magnitude 8.69 mag
Transit duration 0.1443
( 3.463 )
day
hour
Transit depth 1.3 %
Time of mid-transit   2456193.29157 ± 0.00021     HJD or BJD
Orbital period 2.9895936 ± 0.0000048 days
Reference for orbital ephemeris   2016AJ....151...45E  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6206 ± 75 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.116 +0.065 −0.069 dex
Stellar mass 1.201 +0.067 −0.061   Msun
Stellar radius 1.603 +0.039 −0.038 Rsun
Stellar logarithmic surface gravity 4.108 ± 0.014 c.g.s.
Stellar mean density 0.291 ± 0.012
( 0.411 ± 0.017 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.138 −0.0  
Orbital semimajor axis   0.04317 +0.00079 −0.00074  AU
Planetary mass 0.902 +0.060 −0.059
( 286 +19 −18 )
Mjup
Mearth
Planetary radius 1.699 +0.046 −0.045
( 19.04 + 0.52 − 0.50 )
Rjup
Rearth
Planetary surface gravity 7.74 +0.53 −0.52
2.89 +0.03 −0.03
m/s2
log(cgs)
Planetary mean density 0.172 ± 0.014
( 0.228 ± 0.019 )
ρjup
g cm-3
Planetary equilibrium temperature 1823 ± 27 K
Reference of detailed study 2016AJ....151...45E  

 

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

 

KELT-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)