TEPCat: K2-231


 

This page summarises the information held within TEPCat for the transiting planetary system K2-231. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2018AJ....155..173C  
Date of discovery paper 2018 / 3 / 21 y / m / d
Right ascension 19 16 22.04 h m s
Declination −15 46 16.4 d m s
V-band apparent magnitude 12.70 mag
K-band apparent magnitude 10.86 mag
Transit duration 0.123
( 2.95 )
day
hour
Transit depth 0.07 %
Time of mid-transit   2457320.0016 ± 0.0035     HJD or BJD
Orbital period 13.8419 ± 0.0013 days
Reference for orbital ephemeris   2018AJ....155..173C  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5695 ± 50 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.14 ± 0.04 dex
Stellar mass 1.01 ± 0.03   Msun
Stellar radius 0.95 ± 0.03 Rsun
Stellar logarithmic surface gravity 4.48 ± 0.03 c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis     AU
Planetary mass Mjup
Mearth
Planetary radius 0.22 ± 0.02
( 2.47 ± 0.22 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density ρjup
g cm-3
Planetary equilibrium temperature K
Reference of detailed study 2018AJ....155..173C  

 

K2-231 does not have an entry in the catalogue of orbital obliquity measurements.

 

K2-231 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)