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
Data/telescope used for discovery WASP  
Right ascension 16 56 31.32 h m s
Declination +44 18 09.4 d m s
Right ascension (decimal) 254.13050 degrees
Declination (decimal) 44.30261 degrees
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 0.967 ± 0.049   Msun
Stellar radius 0.920 ± 0.016 Rsun
Stellar logarithmic surface gravity 4.497 ± 0.025 c.g.s.
Stellar mean density 1.25 ± 0.09
( 1.76 ± 0.13 )
ρsun
g cm-3
Orbital eccentricity 0.214 +0.021 −0.018  
Orbital semimajor axis   0.0825 ± 0.0014  AU
Planetary mass 0.288 ± 0.021
( 91.6 ± 6.7 )
Mjup
Mearth
Planetary radius 0.756 ± 0.014
( 8.47 ± 0.16 )
Rjup
Rearth
Planetary surface gravity 12.5 ± 1.0
3.10 ± 0.03
m/s2
log(cgs)
Planetary mean density 0.625 ± 0.058
( 0.829 ± 0.077 )
ρjup
g cm-3
Planetary equilibrium temperature 940 ± 80 K
Reference of detailed study arXiv:2204.06656  

 

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 2022/12/01           John Southworth   (Keele University, UK)