TEPCat: KELT-23


 

This page summarises the information held within TEPCat for the transiting planetary system KELT-23. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:1903.00031  
Date of discovery paper 2019 / 3 / 5 y / m / d
Right ascension 15 28 35.19 h m s
Declination +66 21 31.5 d m s
V-band apparent magnitude 10.25 mag
K-band apparent magnitude 8.90 mag
Transit duration 0.09923
( 2.3815 )
day
hour
Transit depth 2.0 %
Time of mid-transit   2458144.89705 ± 0.00091     HJD or BJD
Orbital period 2.255353 ± 0.000031 days
Reference for orbital ephemeris   arXiv:1903.00031  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5900 ± 49 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.105 ± 0.077 dex
Stellar mass 0.945 +0.060 −0.054   Msun
Stellar radius 0.995 ± 0.015 Rsun
Stellar logarithmic surface gravity 4.418 +0.026 −0.025 c.g.s.
Stellar mean density 0.957 +0.064 −0.059
( 1.350 +0.090 −0.083 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.067 −0.0  
Orbital semimajor axis   0.03303 +0.00068 −0.00064  AU
Planetary mass 0.938 +0.045 −0.042
( 298 +14 −13 )
Mjup
Mearth
Planetary radius 1.322 ± 0.025
( 14.82 ± 0.28 )
Rjup
Rearth
Planetary surface gravity 13.30 +0.82 −0.77
3.12 +0.03 −0.03
m/s2
log(cgs)
Planetary mean density 0.380 +0.029 −0.026
( 0.504 +0.038 −0.034 )
ρjup
g cm-3
Planetary equilibrium temperature 1561 ± 20 K
Reference of detailed study arXiv:1903.00031  

 

KELT-23 does not have an entry in the catalogue of orbital obliquity measurements.

 

KELT-23 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2019/07/16           John Southworth   (Keele University, UK)