TEPCat: K2-234


 

This page summarises the information held within TEPCat for the transiting planetary system K2-234. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:1803.02858  
Date of discovery paper 2018 / 3 / 9 y / m / d
Right ascension 10 18 41.06 h m s
Declination +10 07 44.5 d m s
V-band apparent magnitude 9.38 mag
K-band apparent magnitude 7.72 mag
Transit duration 0.2362
( 5.669 )
day
hour
Transit depth 0.14 %
Time of mid-transit   2457913.8049 ± 0.0011     HJD or BJD
Orbital period 11.81433 ± 0.00020 days
Reference for orbital ephemeris   arXiv:1803.02858  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5499 ± 73 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.45 ± 0.04 dex
Stellar mass 1.120 +0.040 −0.010   Msun
Stellar radius 1.657 +0.020 −0.004 Rsun
Stellar logarithmic surface gravity 4.044 +0.006 −0.004 c.g.s.
Stellar mean density 0.243 ± 0.002
( 0.3429 ± 0.0028 )
ρsun
g cm-3
Orbital eccentricity 0.203 ± 0.031  
Orbital semimajor axis   0.1050 ± 0.0013  AU
Planetary mass 0.112 ± 0.010
( 35.6 ± 3.2 )
Mjup
Mearth
Planetary radius 0.612 ± 0.012
( 6.86 ± 0.13 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 0.459 ± 0.051
( 0.609 ± 0.068 )
ρjup
g cm-3
Planetary equilibrium temperature 1053 ± 14 K
Reference of detailed study arXiv:1805.01860  

 

K2-234 does not have an entry in the catalogue of orbital obliquity measurements.

 

K2-234 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)