TEPCat: WASP-171


 

This page summarises the information held within TEPCat for the transiting planetary system WASP-171. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:1904.10388  
Date of discovery paper 2019 / 4 / 24 y / m / d
Right ascension 11 27 22.86 h m s
Declination −44 05 19.3 d m s
V-band apparent magnitude 13.05 mag
K-band apparent magnitude 11.07 mag
Transit duration 0.1908
( 4.579 )
day
hour
Transit depth 0.4 %
Time of mid-transit   2458059.8295 ± 0.0011     HJD or BJD
Orbital period 3.8186244 ± 0.0000038 days
Reference for orbital ephemeris   arXiv:1904.10388  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5965 ± 100 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.04 ± 0.07 dex
Stellar mass 1.171 ± 0.058   Msun
Stellar radius 1.637 +0.091 −0.046 Rsun
Stellar logarithmic surface gravity 4.080 +0.020 −0.049 c.g.s.
Stellar mean density 0.270 +0.017 −0.042
( 0.381 +0.024 −0.059 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.16 −0.0  
Orbital semimajor axis   0.05040 ± 0.00083  AU
Planetary mass 1.084 ± 0.094
( 344 ± 29 )
Mjup
Mearth
Planetary radius 0.98 +0.07 −0.04
( 10.98 + 0.78 − 0.45 )
Rjup
Rearth
Planetary surface gravity 25.4 +3.0 −3.7
3.40 +0.05 −0.07
m/s2
log(cgs)
Planetary mean density 1.13 +0.17 −0.22
( 1.50 +0.23 −0.29 )
ρjup
g cm-3
Planetary equilibrium temperature 1642 +51 −35 K
Reference of detailed study arXiv:1904.10388  

 

WASP-171 does not have an entry in the catalogue of orbital obliquity measurements.

 

WASP-171 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2019/07/16           John Southworth   (Keele University, UK)