TEPCat: K2-87


 

This page summarises the information held within TEPCat for the transiting system K2-87. 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 04 24 56.69 h m s
Declination +18 49 38.7 d m s
V-band apparent magnitude 14.13 mag
K-band apparent magnitude 11.19 mag
Transit duration 0.177
( 4.25 )
day
hour
Transit depth 0.19 %
Time of mid-transit   2457072.30120 ± 0.00340     HJD or BJD
Orbital period 9.727390 ± 0.000870 days
Reference for orbital ephemeris   2016ApJS..226....7C  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5406 ± 168 K
Stellar metal abundance ([Fe/H] or [M/H])   dex
Stellar mass 0.947 ± 0.057   Msun
Stellar radius 0.930 ± 0.290 Rsun
Stellar logarithmic surface gravity 4.470 ± 0.180 c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity  
Orbital semimajor axis   0.088 ± 0.002  AU
Planetary mass Mjup
Mearth
Planetary radius 0.410 ± 0.133
( 4.6 ± 1.5 )
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  

 

K2-87 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

K2-87 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2017/12/11           John Southworth   (Keele University, UK)