TEPCat: WASP-127


 

This page summarises the information held within TEPCat for the transiting planetary system WASP-127. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2017A+A...599A...3L  
Date of discovery paper 2016 / 7 / 27 y / m / d
Right ascension 10 42 14.08 h m s
Declination −03 50 06.3 d m s
V-band apparent magnitude 10.16 mag
K-band apparent magnitude 8.64 mag
Transit duration 0.1814
( 4.354 )
day
hour
Transit depth 1.1 %
Time of mid-transit   2457248.74141 ± 0.00022     HJD or BJD
Orbital period 4.1780647 ± 0.0000011 days
Reference for orbital ephemeris   arXiv:2103.12139  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5750 ± 100 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.18 ± 0.06 dex
Stellar mass 0.950 ± 0.020   Msun
Stellar radius 1.333 ± 0.027 Rsun
Stellar logarithmic surface gravity 4.18 ± 0.01 c.g.s.
Stellar mean density 0.404 ± 0.015
( 0.570 ± 0.021 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.0520 ± 0.0005  AU
Planetary mass 0.165 +0.021 −0.017
( 52.5 +6.7 −5.4 )
Mjup
Mearth
Planetary radius 1.311 +0.025 −0.029
( 14.69 + 0.28 − 0.33 )
Rjup
Rearth
Planetary surface gravity 2.14 +0.32 −0.28
2.33 +0.06 −0.06
m/s2
log(cgs)
Planetary mean density 0.073 +0.010 −0.009
( 0.097 +0.013 −0.012 )
ρjup
g cm-3
Planetary equilibrium temperature 1400 ± 24 K
Reference of detailed study arXiv:2009.13386  

 

Entries in the catalogue of orbital obliquity measurements:
 
Reference λ (degrees)
Allart et al. (2020)   −128.4   + 5.6   - 5.5  

 

 

WASP-127 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)