TEPCat: WASP-91


 

This page summarises the information held within TEPCat for the transiting planetary system WASP-91. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2017A+A...604A.110A  
Date of discovery paper 2017 / 1 / 16 y / m / d
Right ascension 23 51 22.89 h m s
Declination −70 09 10.2 d m s
V-band apparent magnitude 11.99 mag
K-band apparent magnitude 9.71 mag
Transit duration 0.0976
( 2.342 )
day
hour
Transit depth 1.7 %
Time of mid-transit   2456297.7190 ± 0.0002     HJD or BJD
Orbital period 2.798581 ± 0.000003 days
Reference for orbital ephemeris   2017A+A...604A.110A  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 4920 ± 80 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.19 ± 0.13 dex
Stellar mass 0.84 ± 0.07   Msun
Stellar radius 0.86 ± 0.03 Rsun
Stellar logarithmic surface gravity 4.49 ± 0.03 c.g.s.
Stellar mean density 1.3 ± 0.1
( 1.83 ± 0.14 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.07 −0.0  
Orbital semimajor axis   0.037 ± 0.001  AU
Planetary mass 1.34 ± 0.08
( 425 ± 25 )
Mjup
Mearth
Planetary radius 1.03 ± 0.04
( 11.55 ± 0.45 )
Rjup
Rearth
Planetary surface gravity 28.8 +2.1 −1.9
3.46 +0.03 −0.03
m/s2
log(cgs)
Planetary mean density 1.2 ± 0.1
( 1.59 ± 0.13 )
ρjup
g cm-3
Planetary equilibrium temperature 1160 ± 30 K
Reference of detailed study 2017A+A...604A.110A  

 

WASP-91 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

WASP-91 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2017/12/12           John Southworth   (Keele University, UK)