TEPCat: KELT-17


 

This page summarises the information held within TEPCat for the transiting planetary system KELT-17. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2016AJ....152..136Z  
Date of discovery paper 2016 / 7 / 14 y / m / d
Right ascension 08 22 28.21 h m s
Declination +13 44 07.2 d m s
V-band apparent magnitude 9.29 mag
K-band apparent magnitude 8.65 mag
Transit duration 0.1448
( 3.475 )
day
hour
Transit depth 1.0 %
Time of mid-transit   2457226.14219 ± 0.00033     HJD or BJD
Orbital period 3.0801718 ± 0.0000053 days
Reference for orbital ephemeris   2016AJ....152..136Z  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 7454 ± 49 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.018 +0.074 −0.072 dex
Stellar mass 1.635 +0.066 −0.061   Msun
Stellar radius 1.645 +0.060 −0.055 Rsun
Stellar logarithmic surface gravity 4.220 +0.022 −0.024 c.g.s.
Stellar mean density 0.367 +0.032 −0.030
( 0.518 +0.045 −0.042 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.39 −0.0  
Orbital semimajor axis   0.04881 +0.00065 −0.00061  AU
Planetary mass 1.31 +0.28 −0.29
( 416 +89 −92 )
Mjup
Mearth
Planetary radius 1.525 +0.065 −0.060
( 17.09 + 0.73 − 0.67 )
Rjup
Rearth
Planetary surface gravity 13.9 +3.2 −3.1
3.14 +0.09 −0.11
m/s2
log(cgs)
Planetary mean density 0.35 +0.09 −0.08
( 0.46 +0.12 −0.11 )
ρjup
g cm-3
Planetary equilibrium temperature 2087 +32 −33 K
Reference of detailed study 2016AJ....152..136Z  

 

Entries in the catalogue of Rossiter-McLaughlin measurements:
 
Reference λ (degrees)
Zhou et al. (2016)   −115.9   ±   4.1  

 

 

KELT-17 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)