TEPCat: KELT-8


 

This page summarises the information held within TEPCat for the transiting planetary system KELT-8. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2015ApJ...810...30F  
Date of discovery paper 2015 / 5 / 26 y / m / d
Right ascension 18 53 13.32 h m s
Declination +24 07 38.5 d m s
V-band apparent magnitude 10.83 mag
K-band apparent magnitude 9.18 mag
Transit duration 0.1444
( 3.466 )
day
hour
Transit depth 1.3 %
Time of mid-transit   2456883.4803 ± 0.0082     HJD or BJD
Orbital period 3.24406 ± 0.00016 days
Reference for orbital ephemeris   2015ApJ...810...30F  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5754 +54 −55 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.272 ± 0.038 dex
Stellar mass 1.211 +0.078 −0.066   Msun
Stellar radius 1.67 +0.14 −0.12 Rsun
Stellar logarithmic surface gravity 4.078 +0.049 −0.054 c.g.s.
Stellar mean density 0.262 +0.052 −0.048
( 0.370 +0.073 −0.068 )
ρsun
g cm-3
Orbital eccentricity 0.035 +0.050 −0.025  
Orbital semimajor axis   0.04571 +0.00096 −0.00084  AU
Planetary mass 0.867 +0.065 −0.061
( 275 +20 −19 )
Mjup
Mearth
Planetary radius 1.86 +0.18 −0.16
( 20.8 + 2.0 − 1.8 )
Rjup
Rearth
Planetary surface gravity 6.2 +1.1 −1.0
2.79 +0.07 −0.08
m/s2
log(cgs)
Planetary mean density 0.126 +0.035 −0.029
( 0.167 +0.046 −0.038 )
ρjup
g cm-3
Planetary equilibrium temperature 1675 +61 −55 K
Reference of detailed study 2015ApJ...810...30F  

 

KELT-8 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

KELT-8 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)