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
Data/telescope used for discovery KELT  
Right ascension 05 13 10.93 h m s
Declination +33 19 05.4 d m s
Right ascension (decimal) 78.29554 degrees
Declination (decimal) 33.31817 degrees
V-band apparent magnitude 8.54 mag
K-band apparent magnitude 7.54 mag
Transit duration 0.1450
( 3.480 )
day
hour
Transit depth 0.8 %
Time of mid-transit   2458835.661885 ± 0.000073     HJD or BJD
Orbital period 2.73476550 ± 0.00000033 days
Reference for orbital ephemeris   arXiv:2206.11548  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6699 ± 24 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.24 ± 0.02 dex
Stellar mass 1.517 ± 0.022   Msun
Stellar radius 1.712 ± 0.037 Rsun
Stellar logarithmic surface gravity 4.15 ± 0.09 c.g.s.
Stellar mean density 0.301 ± 0.025
( 0.425 ± 0.035 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.0434 ± 0.0012  AU
Planetary mass 1.28 ± 0.17
( 406 ± 54 )
Mjup
Mearth
Planetary radius 1.496 ± 0.035
( 16.77 ± 0.39 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 0.36 ± 0.08
( 0.48 ± 0.11 )
ρjup
g cm-3
Planetary equilibrium temperature 2028 ± 17 K
Reference of detailed study arXiv:2206.11548  

 

Entries in the catalogue of orbital obliquity measurements:
 
Reference λ (degrees)
Bieryla et al. (2015)   9.7   ±   5.2  
Zhou et al. (2016)   2.7   ±   0.6  
Tabernero et al. (2022)   −10.55   ±   0.27  

 

 

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

 


Page generated on 2022/12/01           John Southworth   (Keele University, UK)