TEPCat: WASP-148


 

This page summarises the information held within TEPCat for the transiting planetary system WASP-148. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:2004.14645  
Date of discovery paper 2020 / 5 / 1 y / m / d
Right ascension 16 56 31.32 h m s
Declination +44 18 09.4 d m s
V-band apparent magnitude 12.04 mag
K-band apparent magnitude 10.51 mag
Transit duration 0.1290
( 3.096 )
day
hour
Transit depth 0.7 %
Time of mid-transit   2459063.62033 ± 0.00036     HJD or BJD
Orbital period 8.803544 ± 0.0000021 days
Reference for orbital ephemeris   arXiv:2110.08832  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5437 ± 21 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.25 ± 0.04 dex
Stellar mass 0.970 +0.046 −0.057   Msun
Stellar radius 0.905 +0.013 −0.014 Rsun
Stellar logarithmic surface gravity 4.511 +0.023 −0.028 c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity 0.190 +0.078 −0.072  
Orbital semimajor axis   0.0845 ± 0.0022  AU
Planetary mass 0.354 +0.055 −0.050
( 112 +17 −15 )
Mjup
Mearth
Planetary radius 0.800 +0.020 −0.023
( 8.97 +0.22 −0.26 )
Rjup
Rearth
Planetary surface gravity m/s2
log(cgs)
Planetary mean density ρjup
g cm-3
Planetary equilibrium temperature 940 ± 80 K
Reference of detailed study arXiv:2110.08832  

 

Entries in the catalogue of orbital obliquity measurements:
 
Reference λ (degrees)
Wang et al. (2021)   −8.2   + 8.7   - 9.7  

 

 

WASP-148 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)