TEPCat: K2-237


 

This page summarises the information held within TEPCat for the transiting planetary system K2-237. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:1801.07959  
Date of discovery paper 2018 / 1 / 25 y / m / d
Right ascension 16 55 04.53 h m s
Declination −28 42 38.0 d m s
V-band apparent magnitude 11.60 mag
K-band apparent magnitude 10.22 mag
Transit duration 0.1260
( 3.024 )
day
hour
Transit depth 1.5 %
Time of mid-transit   2457656.463378 ± 0.000005     HJD or BJD
Orbital period 2.1805567 ± 0.0000050 days
Reference for orbital ephemeris   arXiv:1807.05865  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6099 ± 110 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.00 ± 0.08 dex
Stellar mass 1.22 +0.53 −0.05   Msun
Stellar radius 1.34 ± 0.03 Rsun
Stellar logarithmic surface gravity 4.24 ± 0.10 c.g.s.
Stellar mean density 0.102 +0.012 −0.010
( 0.144 +0.017 −0.014 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.0352 ± 0.0010  AU
Planetary mass 1.231 ± 0.043
( 391 ± 13 )
Mjup
Mearth
Planetary radius 1.570 ± 0.054
( 17.60 ± 0.61 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 0.318 ± 0.035
( 0.422 ± 0.046 )
ρjup
g cm-3
Planetary equilibrium temperature 1817 ± 36 K
Reference of detailed study arXiv:1807.05865  

 

K2-237 does not have an entry in the catalogue of orbital obliquity measurements.

 

K2-237 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2019/07/02           John Southworth   (Keele University, UK)