TEPCat: HATS-8


 

This page summarises the information held within TEPCat for the transiting planetary system HATS-8. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2015AJ....150...49B  
Date of discovery paper 2015 / 6 / 4 y / m / d
Right ascension 19 39 46.08 h m s
Declination −25 44 53.9 d m s
V-band apparent magnitude 14.03 mag
K-band apparent magnitude 12.66 mag
Transit duration 0.1263
( 3.031 )
day
hour
Transit depth 0.8 %
Time of mid-transit   2456672.1102 ± 0.0012     HJD or BJD
Orbital period 3.583893 ± 0.000010 days
Reference for orbital ephemeris   2015AJ....150...49B  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5679 ± 50 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.210 ± 0.080 dex
Stellar mass 1.056 ± 0.037   Msun
Stellar radius 1.086 +0.149 −0.049 Rsun
Stellar logarithmic surface gravity 4.386 ± 0.071 c.g.s.
Stellar mean density 0.82 +0.20 −0.15
( 1.16 +0.28 −0.21 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.376 −0.0  
Orbital semimajor axis   0.04667 ± 0.00055  AU
Planetary mass 0.138 ± 0.019
( 43.9 ± 6.0 )
Mjup
Mearth
Planetary radius 0.873 +0.123 −0.075
( 9.79 +1.38 −0.84 )
Rjup
Rearth
Planetary surface gravity 4.5 ± 1.2
2.7 ± 0.1
m/s2
log(cgs)
Planetary mean density 0.195 ± 0.068
( 0.259 ± 0.090 )
ρjup
g cm-3
Planetary equilibrium temperature 1324 +79 −38 K
Reference of detailed study 2015AJ....150...49B  

 

HATS-8 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

HATS-8 has not been analysed as part of the Homogeneous Studies of Transiting Extrasolar Planets project.

 


Page generated on 2017/12/15           John Southworth   (Keele University, UK)