TEPCat: HAT-P-40


 

This page summarises the information held within TEPCat for the transiting planetary system HAT-P-40. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2012AJ....144..139H  
Date of discovery paper 2012 / 7 / 16 y / m / d
Right ascension 22 22 03.33 h m s
Declination +45 27 26.6 d m s
V-band apparent magnitude 11.34 mag
K-band apparent magnitude 10.01 mag
Transit duration 0.2557
( 6.137 )
day
hour
Transit depth 0.4 %
Time of mid-transit   2455813.17584 ± 0.00054     HJD or BJD
Orbital period 4.457243 ± 0.000010 days
Reference for orbital ephemeris   2012AJ....144..139H  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 6080 ± 100 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.22 ± 0.10 dex
Stellar mass 1.512 +0.045 −0.109   Msun
Stellar radius 2.206 ± 0.061 Rsun
Stellar logarithmic surface gravity 3.93 ± 0.02 c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.0608 +0.0006 −0.0015  AU
Planetary mass 0.615 ± 0.038
( 195 ± 12 )
Mjup
Mearth
Planetary radius 1.730 ± 0.062
( 19.39 ± 0.69 )
Rjup
Rearth
Planetary surface gravity 5.13 ± 0.35
2.71 ± 0.03
m/s2
log(cgs)
Planetary mean density 0.11 ± 0.01
( 0.146 ± 0.013 )
ρjup
g cm-3
Planetary equilibrium temperature 1770 ± 33 K
Reference of detailed study 2012AJ....144..139H  

 

HAT-P-40 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

HAT-P-40 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)