TEPCat: WASP-7


 

This page summarises the information held within TEPCat for the transiting planetary system WASP-7. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2009ApJ...690L..89H  
Date of discovery paper 2008 / 5 / 17 y / m / d
Right ascension 20 44 10.22 h m s
Declination −39 13 30.9 d m s
V-band apparent magnitude 9.48 mag
K-band apparent magnitude 8.40 mag
Transit duration 0.172
( 4.13 )
day
hour
Transit depth 1.0 %
Time of mid-transit   2455446.63493 ± 0.00030     HJD or BJD
Orbital period 4.9546416 ± 0.0000035 days
Reference for orbital ephemeris   2010MNRAS.408.1680S  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6520 ± 70 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.00 ± 0.10 dex
Stellar mass 1.317 ± 0.072   Msun
Stellar radius 1.478 ± 0.088 Rsun
Stellar logarithmic surface gravity 4.218 ± 0.048 c.g.s.
Stellar mean density 0.408 ± 0.068
( 0.576 ± 0.096 )
ρsun
g cm-3
Orbital eccentricity 00.0  
Orbital semimajor axis   0.0624 ± 0.0011  AU
Planetary mass 0.98 ± 0.13
( 311 ± 41 )
Mjup
Mearth
Planetary radius 1.374 ± 0.094
( 15.4 ± 1.1 )
Rjup
Rearth
Planetary surface gravity 12.9 ± 2.4
3.11 ± 0.07
m/s2
log(cgs)
Planetary mean density 0.353 ± 0.087
( 0.47 ± 0.12 )
ρjup
g cm-3
Planetary equilibrium temperature 1530 ± 45 K
Reference of detailed study 2012MNRAS.426.1291S  

 

Entries in the catalogue of Rossiter-McLaughlin measurements:
 
Reference λ (degrees)
Albrecht et al. (2011)   86   ±   6  

 

 

WASP-7 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)