TEPCat: WASP-1


 

This page summarises the information held within TEPCat for the transiting planetary system WASP-1. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2007MNRAS.375..951C  
Date of discovery paper 2006 / 9 / 22 y / m / d
Right ascension 00 20 40.08 h m s
Declination +31 59 23.8 d m s
V-band apparent magnitude 11.31 mag
K-band apparent magnitude 10.28 mag
Transit duration 0.1550
( 3.720 )
day
hour
Transit depth 1.2 %
Time of mid-transit   2453912.51504 ± 0.00035     HJD or BJD
Orbital period 2.51994529 ± 0.000000056 days
Reference for orbital ephemeris   2016MNRAS.459..789T  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6160 ± 64 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.14 ± 0.07 dex
Stellar mass 1.24 +0.05 −0.07   Msun
Stellar radius 1.470 +0.022 −0.032 Rsun
Stellar logarithmic surface gravity 4.195 +0.010 −0.017 c.g.s.
Stellar mean density 0.389 +0.007 −0.012
( 0.5489 +0.0099 −0.0169 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.03889 +0.00053 −0.00073  AU
Planetary mass 0.854 +0.057 −0.052
( 271 +18 −16 )
Mjup
Mearth
Planetary radius 1.483 +0.024 −0.034
( 16.62 + 0.27 − 0.38 )
Rjup
Rearth
Planetary surface gravity 9.8 +0.8 −0.9
2.99 +0.03 −0.04
m/s2
log(cgs)
Planetary mean density 0.262 +0.022 −0.024
( 0.348 +0.029 −0.032 )
ρjup
g cm-3
Planetary equilibrium temperature 1830 +33 −49 K
Reference of detailed study 2014AcA....64...27M  

 

Entries in the catalogue of Rossiter-McLaughlin measurements:
 
Reference λ (degrees)
Simpson et al. (2011)   −79.0   + 4.5   - 4.3  
Albrecht et al. (2011)   −59   + 99   - 26  

 

 

WASP-1 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


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