TEPCat: WASP-55


 

This page summarises the information held within TEPCat for the transiting planetary system WASP-55. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2012MNRAS.426..739H  
Date of discovery paper 2012 / 4 / 24 y / m / d
Right ascension 13 35 01.94 h m s
Declination −17 30 12.7 d m s
V-band apparent magnitude 11.76 mag
K-band apparent magnitude 10.40 mag
Transit duration 0.147
( 3.53 )
day
hour
Transit depth 1.9 %
Time of mid-transit   2456416.71565 ± 0.00013     HJD or BJD
Orbital period 4.4656291 ± 0.0000011 days
Reference for orbital ephemeris   2016MNRAS.457.4205S  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6070 ± 53 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.09 ± 0.04 dex
Stellar mass 1.162 +0.036 −0.039   Msun
Stellar radius 1.102 +0.021 −0.016 Rsun
Stellar logarithmic surface gravity 4.419 +0.009 −0.015 c.g.s.
Stellar mean density 0.869 +0.026 −0.041
( 1.226 +0.037 −0.058 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.20 −0.0  
Orbital semimajor axis   0.0558 ± 0.0006  AU
Planetary mass 0.627 +0.038 −0.039
( 199 +12 −12 )
Mjup
Mearth
Planetary radius 1.335 +0.032 −0.022
( 14.96 + 0.36 − 0.25 )
Rjup
Rearth
Planetary surface gravity 8.73 +0.54 −0.41
2.94 +0.03 −0.02
m/s2
log(cgs)
Planetary mean density 0.247 +0.017 −0.021
( 0.328 +0.023 −0.028 )
ρjup
g cm-3
Planetary equilibrium temperature 1300 +15 −13 K
Reference of detailed study 2016MNRAS.457.4205S  

 

WASP-55 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

WASP-55 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)