TEPCat: WASP-89


 

This page summarises the information held within TEPCat for the transiting planetary system WASP-89. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2015AJ....150...18H  
Date of discovery paper 2014 / 10 / 24 y / m / d
Right ascension 20 55 35.98 h m s
Declination −18 58 16.1 d m s
V-band apparent magnitude 13.09 mag
K-band apparent magnitude 11.00 mag
Transit duration 0.1025
( 2.460 )
day
hour
Transit depth 1.9 %
Time of mid-transit   2456207.02114 ± 0.00012     HJD or BJD
Orbital period 3.3564227 ± 0.0000025 days
Reference for orbital ephemeris   2015AJ....150...18H  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 4955 ± 100 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.15 ± 0.14 dex
Stellar mass 0.92 ± 0.08   Msun
Stellar radius 0.88 ± 0.03 Rsun
Stellar logarithmic surface gravity 4.515 ± 0.018 c.g.s.
Stellar mean density 1.36 ± 0.07
( 1.919 ± 0.099 )
ρsun
g cm-3
Orbital eccentricity 0.193 ± 0.009  
Orbital semimajor axis   0.0427 ± 0.0012  AU
Planetary mass 5.9 ± 0.4
( 18756 ± 1272 )
Mjup
Mearth
Planetary radius 1.04 ± 0.04
( 11.66 ± 0.45 )
Rjup
Rearth
Planetary surface gravity 125.9 ± 5.8
4.10 ± 0.02
m/s2
log(cgs)
Planetary mean density 5.27 ± 0.33
( 6.99 ± 0.44 )
ρjup
g cm-3
Planetary equilibrium temperature 1120 ± 20 K
Reference of detailed study 2015AJ....150...18H  

 

WASP-89 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

WASP-89 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)