TEPCat: HAT-P-44


 

This page summarises the information held within TEPCat for the transiting planetary system HAT-P-44. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2014AJ....147..128H  
Date of discovery paper 2013 / 8 / 14 y / m / d
Right ascension 14 12 34.56 h m s
Declination +47 00 52.9 d m s
V-band apparent magnitude 13.21 mag
K-band apparent magnitude 11.28 mag
Transit duration 0.1302
( 3.125 )
day
hour
Transit depth 2.1 %
Time of mid-transit   2455696.93695 ± 0.00024     HJD or BJD
Orbital period 4.301219 ± 0.000019 days
Reference for orbital ephemeris   2014AJ....147..128H  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5295 ± 100 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.33 ± 0.10 dex
Stellar mass 0.942 ± 0.041   Msun
Stellar radius 0.949 +0.080 −0.037 Rsun
Stellar logarithmic surface gravity 4.46 ± 0.06 c.g.s.
Stellar mean density ρsun
g cm-3
Orbital eccentricity 0.044 ± 0.052  
Orbital semimajor axis   0.0507 ± 0.0007  AU
Planetary mass 0.352 ± 0.029
( 111.90 ± 9.22 )
Mjup
Mearth
Planetary radius 1.242 +0.106 −0.061
( 13.92 + 1.19 − 0.68 )
Rjup
Rearth
Planetary surface gravity 5.62 +0.69 −0.84
2.75 +0.05 −0.07
m/s2
log(cgs)
Planetary mean density 0.17 ± 0.03
( 0.226 ± 0.040 )
ρjup
g cm-3
Planetary equilibrium temperature 1108 +51 −32 K
Reference of detailed study 2014AJ....147..128H  

 

HAT-P-44 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

HAT-P-44 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)