TEPCat: WASP-87


 

This page summarises the information held within TEPCat for the transiting planetary system WASP-87. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:1410.3449  
Date of discovery paper 2014 / 10 / 14 y / m / d
Right ascension 12 21 17.92 h m s
Declination −52 50 27.0 d m s
V-band apparent magnitude 10.74 mag
K-band apparent magnitude 9.60 mag
Transit duration 0.12436
( 2.9846 )
day
hour
Transit depth 0.7 %
Time of mid-transit   2456361.84030 ± 0.00021     HJD or BJD
Orbital period 1.6827950 ± 0.0000019 days
Reference for orbital ephemeris   arXiv:1410.3449  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6450 ± 120 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.41 ± 0.10 dex
Stellar mass 1.204 ± 0.093   Msun
Stellar radius 1.627 ± 0.062 Rsun
Stellar logarithmic surface gravity 4.096 ± 0.023 c.g.s.
Stellar mean density 0.280 ± 0.021
( 0.395 ± 0.030 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.099 −0.0  
Orbital semimajor axis   0.02946 ± 0.00075  AU
Planetary mass 2.18 ± 0.15
( 693 ± 47 )
Mjup
Mearth
Planetary radius 1.385 ± 0.060
( 15.52 ± 0.67 )
Rjup
Rearth
Planetary surface gravity 26.1 ± 1.9
3.42 ± 0.03
m/s2
log(cgs)
Planetary mean density 0.823 ± 0.088
( 1.09 ± 0.12 )
ρjup
g cm-3
Planetary equilibrium temperature 2322 ± 50 K
Reference of detailed study arXiv:1410.3449  

 

Entries in the catalogue of Rossiter-McLaughlin measurements:
 
Reference λ (degrees)
Addison et al. (2016)   −8   ±   11  

 

 

WASP-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)