TEPCat: K2-54


 

This page summarises the information held within TEPCat for the transiting system K2-54. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2016ApJS..226....7C  
Date of discovery paper 2016 / 7 / 19 y / m / d
Right ascension 22 32 13.01 h m s
Declination −17 32 38.4 d m s
V-band apparent magnitude 14.04 mag
K-band apparent magnitude 11.07 mag
Transit duration 0.115
( 2.76 )
day
hour
Transit depth 0.07 %
Time of mid-transit   2456982.93600 ± 0.00530     HJD or BJD
Orbital period 9.784300 ± 0.001400 days
Reference for orbital ephemeris   2016ApJS..226....7C  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 3798 ± 113 K
Stellar metal abundance ([Fe/H] or [M/H])   dex
Stellar mass 0.421 ± 0.069   Msun
Stellar radius 0.384 ± 0.052 Rsun
Stellar logarithmic surface gravity 4.891 ± 0.057 c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity  
Orbital semimajor axis   0.067 ± 0.004  AU
Planetary mass Mjup
Mearth
Planetary radius 0.103 ± 0.017
( 1.15 ± 0.19 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density ρjup
g cm-3
Planetary equilibrium temperature K
Reference of detailed study 2016ApJS..226....7C  

 

K2-54 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

K2-54 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


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