TEPCat: K2-81


 

This page summarises the information held within TEPCat for the transiting system K2-81. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2016ApJS..226....7C  
Date of discovery paper 2016 / 7 / 19 y / m / d
Right ascension 03 49 56.52 h m s
Declination +14 30 07.9 d m s
V-band apparent magnitude 14.36 mag
K-band apparent magnitude 11.31 mag
Transit duration 0.090
( 2.16 )
day
hour
Transit depth 0.07 %
Time of mid-transit   2457070.44250 ± 0.00330     HJD or BJD
Orbital period 6.102240 ± 0.000540 days
Reference for orbital ephemeris   2016ApJS..226....7C  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 4530 ± 156 K
Stellar metal abundance ([Fe/H] or [M/H])   dex
Stellar mass 0.697 ± 0.074   Msun
Stellar radius 0.631 ± 0.073 Rsun
Stellar logarithmic surface gravity 4.668 ± 0.050 c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity  
Orbital semimajor axis   0.058 ± 0.002  AU
Planetary mass Mjup
Mearth
Planetary radius 0.162 ± 0.022
( 1.82 ± 0.25 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density ρjup
g cm-3
Planetary equilibrium temperature K
Reference of detailed study 2016ApJS..226....7C  

 

K2-81 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

K2-81 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2017/12/15           John Southworth   (Keele University, UK)