TEPCat: K2-131


 

This page summarises the information held within TEPCat for the transiting planetary system K2-131. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2017AJ....154..226D  
Date of discovery paper 2017 / 10 / 3 y / m / d
Right ascension 12 11 00.38 h m s
Declination −09 45 54.8 d m s
V-band apparent magnitude 12.12 mag
K-band apparent magnitude 10.05 mag
Transit duration 0.058
( 1.39 )
day
hour
Transit depth 0.05 %
Time of mid-transit   2457582.9360 ± 0.0011     HJD or BJD
Orbital period 0.3693038 ± 0.0000091 days
Reference for orbital ephemeris   2017AJ....154..226D  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5200 ± 100 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.02 ± 0.08 dex
Stellar mass 0.793 +0.024 −0.040   Msun
Stellar radius 0.744 +0.010 −0.009 Rsun
Stellar logarithmic surface gravity 4.62 ± 0.10 c.g.s.
Stellar mean density 1.92 +0.10 −0.13
( 2.71 +0.14 −0.18 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.26 −0.0  
Orbital semimajor axis     AU
Planetary mass 0.0198 ± 0.0044
( 6.3 ± 1.4 )
Mjup
Mearth
Planetary radius 0.1473 +0.0058 −0.0050
( 1.651 +0.065 −0.056 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 5.8 ± 2.0
( 7.7 ± 2.7 )
ρjup
g cm-3
Planetary equilibrium temperature K
Reference of detailed study arXiv:1908.06299  

 

K2-131 does not have an entry in the catalogue of orbital obliquity measurements.

 

K2-131 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2021/12/02           John Southworth   (Keele University, UK)