TEPCat: HATS-20


 

This page summarises the information held within TEPCat for the transiting planetary system HATS-20. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:1607.00322  
Date of discovery paper 2016 / 7 / 4 y / m / d
Right ascension 13 12 32.04 h m s
Declination −45 35 26.0 d m s
V-band apparent magnitude 13.77 mag
K-band apparent magnitude 11.86 mag
Transit duration 0.1022
( 2.453 )
day
hour
Transit depth 1.0 %
Time of mid-transit   2457121.16516 ± 0.00055     HJD or BJD
Orbital period 3.7992969 ± 0.0000079 days
Reference for orbital ephemeris   arXiv:1607.00322  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5406 ± 49 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.030 ± 0.050 dex
Stellar mass 0.910 ± 0.026   Msun
Stellar radius 0.892 +0.057 −0.040 Rsun
Stellar logarithmic surface gravity 4.497 ± 0.052 c.g.s.
Stellar mean density 1.28 ± 0.21
( 1.81 ± 0.30 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.501 −0.0  
Orbital semimajor axis   0.04619 ± 0.00044  AU
Planetary mass 0.273 ± 0.035
( 86 ± 11 )
Mjup
Mearth
Planetary radius 0.776 ± 0.055
( 8.70 ± 0.62 )
Rjup
Rearth
Planetary surface gravity 11.2 +2.4 −2.0
3.05 +0.08 −0.09
m/s2
log(cgs)
Planetary mean density 0.55 ± 0.14
( 0.73 ± 0.19 )
ρjup
g cm-3
Planetary equilibrium temperature 1147 ± 36 K
Reference of detailed study arXiv:1607.00322  

 

HATS-20 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

HATS-20 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2017/12/13           John Southworth   (Keele University, UK)