TEPCat: KELT-7


 

This page summarises the information held within TEPCat for the transiting planetary system KELT-7. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2015AJ....150...12B  
Date of discovery paper 2015 / 1 / 23 y / m / d
Right ascension 05 13 10.93 h m s
Declination +33 19 05.4 d m s
V-band apparent magnitude 8.54 mag
K-band apparent magnitude 7.54 mag
Transit duration 0.1463
( 3.511 )
day
hour
Transit depth 0.8 %
Time of mid-transit   2456355.22981 ± 0.00020     HJD or BJD
Orbital period 2.7347785 ± 0.0000038 days
Reference for orbital ephemeris   2015AJ....150...12B  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6789 +50 −49 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.139 +0.075 −0.081 dex
Stellar mass 1.535 +0.066 −0.054   Msun
Stellar radius 1.732 +0.043 −0.045 Rsun
Stellar logarithmic surface gravity 4.149 ± 0.019 c.g.s.
Stellar mean density 0.297 +0.019 −0.018
( 0.419 +0.027 −0.025 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.04415 +0.00062 −0.00052  AU
Planetary mass 1.28 ± 0.18
( 406 ± 57 )
Mjup
Mearth
Planetary radius 1.533 +0.046 −0.047
( 17.18 + 0.52 − 0.53 )
Rjup
Rearth
Planetary surface gravity 13.5 ± 2.0
3.13 ± 0.06
m/s2
log(cgs)
Planetary mean density 0.333 +0.055 −0.051
( 0.442 +0.073 −0.068 )
ρjup
g cm-3
Planetary equilibrium temperature 2048 ± 27 K
Reference of detailed study 2015AJ....150...12B  

 

Entries in the catalogue of Rossiter-McLaughlin measurements:
 
Reference λ (degrees)
Bieryla et al. (2015)   9.7   ±   5.2  
Zhou et al. (2016)   2.7   ±   0.6  

 

 

KELT-7 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2017/12/11           John Southworth   (Keele University, UK)