TEPCat: Qatar-9


 

This page summarises the information held within TEPCat for the transiting planetary system Qatar-9. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2019AJ....157..224A  
Date of discovery paper 2019 / 3 / 25 y / m / d
Right ascension 10 42 59.54 h m s
Declination +60 57 50.8 d m s
V-band apparent magnitude 14.13 mag
K-band apparent magnitude 11.10 mag
Transit duration 0.0778
( 1.867 )
day
hour
Transit depth 2.8 %
Time of mid-transit   2458227.75643 ± 0.00027     HJD or BJD
Orbital period 1.540731 ± 0.000038 days
Reference for orbital ephemeris   2019AJ....157..224A  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 4309 ± 31 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.252 ± 0.076 dex
Stellar mass 0.719 ± 0.024   Msun
Stellar radius 0.696 ± 0.008 Rsun
Stellar logarithmic surface gravity 4.610 ± 0.010 c.g.s.
Stellar mean density 2.137 ± 0.061
( 3.015 ± 0.086 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.0234 ± 0.0003  AU
Planetary mass 1.19 ± 0.16
( 378 ± 50 )
Mjup
Mearth
Planetary radius 1.009 ± 0.014
( 11.31 ± 0.16 )
Rjup
Rearth
Planetary surface gravity 28.8 +4.5 −3.9
3.46 +0.06 −0.06
m/s2
log(cgs)
Planetary mean density 1.08 ± 0.15
( 1.43 ± 0.20 )
ρjup
g cm-3
Planetary equilibrium temperature 1134 ± 9 K
Reference of detailed study 2019AJ....157..224A  

 

Qatar-9 does not have an entry in the catalogue of orbital obliquity measurements.

 

Qatar-9 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2019/07/16           John Southworth   (Keele University, UK)