TEPCat: Kepler-254c


 

This page summarises the information held within TEPCat for the transiting system Kepler-254c. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2014ApJ...784...45R  
Date of discovery paper 2014 / 3 / 20 y / m / d
Right ascension 19 12 39.53 h m s
Declination +45 48 59.4 d m s
V-band apparent magnitude 16.02 mag
K-band apparent magnitude 14.25 mag
Transit duration 0.1401
( 3.362 )
day
hour
Transit depth 0.06 %
Time of mid-transit   2454975.53938 ± 0.00389     HJD or BJD
Orbital period 12.412183 ± 0.000082 days
Reference for orbital ephemeris   2014ApJ...784...45R  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5957 ± 200 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.19 ± 0.50 dex
Stellar mass 1.009   Msun
Stellar radius 0.910 ± 0.433 Rsun
Stellar logarithmic surface gravity 4.524 ± 0.300 c.g.s.
Stellar mean density 1.890 ± 0.581
( 2.67 ± 0.82 )
ρsun
g cm-3
Orbital eccentricity  
Orbital semimajor axis     AU
Planetary mass Mjup
Mearth
Planetary radius 0.192 ± 0.092
( 2.2 ± 1.0 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density ρjup
g cm-3
Planetary equilibrium temperature K
Reference of detailed study 2014ApJ...784...45R  

 

Kepler-254c does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

Kepler-254c 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)