TEPCat: Kepler-258b


 

This page summarises the information held within TEPCat for the transiting system Kepler-258b. 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 36 16.44 h m s
Declination +46 34 45.6 d m s
V-band apparent magnitude 15.53 mag
K-band apparent magnitude 12.95 mag
Transit duration 0.1424
( 3.418 )
day
hour
Transit depth 0.21 %
Time of mid-transit   2455004.54424 ± 0.00075     HJD or BJD
Orbital period 13.197220 ± 0.000019 days
Reference for orbital ephemeris   2014ApJ...784...45R  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 4942 ± 200 K
Stellar metal abundance ([Fe/H] or [M/H])   0.41 ± 0.50 dex
Stellar mass 0.842   Msun
Stellar radius 0.915 ± 0.611 Rsun
Stellar logarithmic surface gravity 4.441 ± 0.300 c.g.s.
Stellar mean density 1.550 ± 0.916
( 2.2 ± 1.3 )
ρsun
g cm-3
Orbital eccentricity  
Orbital semimajor axis     AU
Planetary mass Mjup
Mearth
Planetary radius 0.362 ± 0.242
( 4.1 ± 2.7 )
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-258b does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

Kepler-258b 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)