TEPCat: K2-140


 

This page summarises the information held within TEPCat for the transiting planetary system K2-140. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2018MNRAS.475.1809G  
Date of discovery paper 2017 / 6 / 22 y / m / d
Right ascension 12 32 32.96 h m s
Declination −09 36 27.5 d m s
V-band apparent magnitude 12.62 mag
K-band apparent magnitude 11.00 mag
Transit duration 0.190
( 4.56 )
day
hour
Transit depth 1.3 %
Time of mid-transit   2457621.13089 ± 0.00010     HJD or BJD
Orbital period 6.569228 ± 0.000010 days
Reference for orbital ephemeris   2018RNAAS...2a..22M  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5654 ± 55 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.12 ± 0.045 dex
Stellar mass 1.005 +0.021 −0.020   Msun
Stellar radius 0.987 ± 0.011 Rsun
Stellar logarithmic surface gravity 4.452 +0.010 −0.009 c.g.s.
Stellar mean density 1.048 ± 0.041
( 1.479 ± 0.058 )
ρsun
g cm-3
Orbital eccentricity 0.120 +0.056 −0.046  
Orbital semimajor axis   0.0591 ± 0.0034  AU
Planetary mass 1.019 ± 0.070
( 323 ± 22 )
Mjup
Mearth
Planetary radius 1.095 ± 0.018
( 12.27 ± 0.20 )
Rjup
Rearth
Planetary surface gravity 21.1 +1.7 −1.5
3.32 +0.03 −0.03
m/s2
log(cgs)
Planetary mean density 0.726 ± 0.062
( 0.963 ± 0.082 )
ρjup
g cm-3
Planetary equilibrium temperature 1114 ± 34 K
Reference of detailed study 2018MNRAS.475.1809G  

 

K2-140 does not have an entry in the catalogue of orbital obliquity measurements.

 

K2-140 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)