TEPCat: WASP-156


 

This page summarises the information held within TEPCat for the transiting planetary system WASP-156. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:1710.06321  
Date of discovery paper 2017 / 10 / 18 y / m / d
Right ascension 02 11 07.61 h m s
Declination +02 25 04.8 d m s
V-band apparent magnitude 11.57 mag
K-band apparent magnitude 9.34 mag
Transit duration 0.100
( 2.40 )
day
hour
Transit depth 0.5 %
Time of mid-transit   2454677.707 ± 0.002     HJD or BJD
Orbital period 3.836169 ± 0.000003 days
Reference for orbital ephemeris   arXiv:1710.06321  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 4910 ± 61 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.24 ± 0.12 dex
Stellar mass 0.842 ± 0.052   Msun
Stellar radius 0.76 ± 0.03 Rsun
Stellar logarithmic surface gravity 4.60 +0.04 −0.07 c.g.s.
Stellar mean density 1.9 +0.1 −0.3
( 2.68 +0.14 −0.42 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.007 −0.0  
Orbital semimajor axis   0.0453 ± 0.0009  AU
Planetary mass 0.128 +0.010 −0.009
( 40.7 +3.2 −2.9 )
Mjup
Mearth
Planetary radius 0.51 ± 0.02
( 5.72 ± 0.22 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density 1.0 ± 0.1
( 1.33 ± 0.13 )
ρjup
g cm-3
Planetary equilibrium temperature 970 +30 −20 K
Reference of detailed study arXiv:1710.06321  

 

WASP-156 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

WASP-156 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)