TEPCat: K2-24b


 

This page summarises the information held within TEPCat for the transiting planetary system K2-24b. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2016ApJ...818...36P  
Date of discovery paper 2015 / 11 / 17 y / m / d
Right ascension 16 10 17.69 h m s
Declination −24 59 25.2 d m s
V-band apparent magnitude 11.28 mag
K-band apparent magnitude 9.18 mag
Transit duration 0.228
( 5.47 )
day
hour
Transit depth 0.2 %
Time of mid-transit   2456905.7948 ± 0.0007     HJD or BJD
Orbital period 20.8851 ± 0.0003 days
Reference for orbital ephemeris   2016ApJ...818...36P  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5743 ± 60 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.42 ± 0.04 dex
Stellar mass 1.12 ± 0.05   Msun
Stellar radius 1.21 ± 0.11 Rsun
Stellar logarithmic surface gravity 4.29 ± 0.07 c.g.s.
Stellar mean density 0.63 ± 0.16
( 0.89 ± 0.23 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.46 −0.0  
Orbital semimajor axis   0.154 ± 0.002  AU
Planetary mass 0.062 +0.014 −0.14
( 19.7 +4.5 −44.5 )
Mjup
Mearth
Planetary radius 0.507 ± 0.050
( 5.68 ± 0.56 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 0.44 ± 0.17
( 0.58 ± 0.23 )
ρjup
g cm-3
Planetary equilibrium temperature 767 ± 177 K
Reference of detailed study 2016ApJ...823..115D  

 

K2-24b does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

K2-24b 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)