TEPCat: WASP-174


 

This page summarises the information held within TEPCat for the transiting planetary system WASP-174. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2018MNRAS.480.5307T  
Date of discovery paper 2018 / 2 / 5 y / m / d
Right ascension 13 03 10.57 h m s
Declination −41 23 05.3 d m s
V-band apparent magnitude 11.79 mag
K-band apparent magnitude 10.58 mag
Transit duration 0.084
( 2.02 )
day
hour
Transit depth 0.8 %
Time of mid-transit   2458545.52660 ± 0.00014     HJD or BJD
Orbital period 4.2337005 ± 0.00000018 days
Reference for orbital ephemeris   arXiv:1909.08674  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6400 ± 100 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.09 ± 0.09 dex
Stellar mass 1.240 ± 0.038   Msun
Stellar radius 1.347 ± 0.018 Rsun
Stellar logarithmic surface gravity 4.273 ± 0.010 c.g.s.
Stellar mean density 0.507 ± 0.016
( 0.715 ± 0.023 )
ρsun
g cm-3
Orbital eccentricity  
Orbital semimajor axis   0.05503 ± 0.00056  AU
Planetary mass 0.330 ± 0.091
( 104 ± 28 )
Mjup
Mearth
Planetary radius 1.437 ± 0.050
( 16.11 ± 0.56 )
Rjup
Rearth
Planetary surface gravity 3.9 +1.4 −1.0
2.6 +0.1 −0.1
m/s2
log(cgs)
Planetary mean density 0.102 ± 0.032
( 0.135 ± 0.042 )
ρjup
g cm-3
Planetary equilibrium temperature 1528 ± 17 K
Reference of detailed study arXiv:1909.08674  

 

Entries in the catalogue of orbital obliquity measurements:
 
Reference λ (degrees)
Temple et al. (2018)   31   ±   1  

 

 

WASP-174 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2021/12/02           John Southworth   (Keele University, UK)