TEPCat: HAT-P-68


 

This page summarises the information held within TEPCat for the transiting planetary system HAT-P-68. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper arXiv:2010.16026  
Date of discovery paper 2020 / 11 / 2 y / m / d
Right ascension 07 53 55.98 h m s
Declination +23 56 17.6 d m s
V-band apparent magnitude 13.94 mag
K-band apparent magnitude 11.02 mag
Transit duration 0.08695
( 2.0868 )
day
hour
Transit depth 3.6 %
Time of mid-transit   2456614.20355 ± 0.00014     HJD or BJD
Orbital period 2.29840551 ± 0.00000052 days
Reference for orbital ephemeris   arXiv:2010.16026  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 4508 ± 43 K
Stellar metal abundance ([Fe/H] or [M/H])   −0.059 ± 0.036 dex
Stellar mass 0.679 +0.029 −0.008   Msun
Stellar radius 0.6701 +0.0041 −0.0032 Rsun
Stellar logarithmic surface gravity 4.615 ± 0.013 c.g.s.
Stellar mean density 2.24 +0.13 −0.03
( 3.161 +0.183 −0.042 )
ρsun
g cm-3
Orbital eccentricity 0.0 +0.041 −0.0  
Orbital semimajor axis   0.02996 +0.00043 −0.00012  AU
Planetary mass 0.724 ± 0.043
( 230 ± 13 )
Mjup
Mearth
Planetary radius 1.072 ± 0.012
( 12.02 ± 0.13 )
Rjup
Rearth
Planetary surface gravity 15.6 +1.1 −1.0
3.19 +0.03 −0.03
m/s2
log(cgs)
Planetary mean density 0.548 ± 0.038
( 0.727 ± 0.050 )
ρjup
g cm-3
Planetary equilibrium temperature 1028 ± 8 K
Reference of detailed study arXiv:2010.16026  

 

HAT-P-68 does not have an entry in the catalogue of orbital obliquity measurements.

 

HAT-P-68 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)