TEPCat: HAT-P-3


 

This page summarises the information held within TEPCat for the transiting planetary system HAT-P-3. Please see here for descriptions of the quantities given below.

 

Discovery and basic observable quantities:
 
Quantity Value Unit
Reference of discovery paper 2007ApJ...666L.121T  
Date of discovery paper 2007 / 6 / 14 y / m / d
Right ascension 13 44 22.59 h m s
Declination +48 01 43.2 d m s
V-band apparent magnitude 11.86 mag
K-band apparent magnitude 9.45 mag
Transit duration 0.08646
( 2.0750 )
day
hour
Transit depth 1.5 %
Time of mid-transit   2454856.70118 ± 0.00010     HJD or BJD
Orbital period 2.8997360 ± 0.0000020 days
Reference for orbital ephemeris   2011AJ....141..179C  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5185 ± 50 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.27 ± 0.05 dex
Stellar mass 0.900 ± 0.056   Msun
Stellar radius 0.870 ± 0.021 Rsun
Stellar logarithmic surface gravity 4.513 ± 0.021 c.g.s.
Stellar mean density 1.365 ± 0.078
( 1.93 ± 0.11 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.03842 ± 0.00080  AU
Planetary mass 0.584 ± 0.027
( 185.65 ± 8.58 )
Mjup
Mearth
Planetary radius 0.947 ± 0.030
( 10.61 ± 0.34 )
Rjup
Rearth
Planetary surface gravity 16.14 ± 0.90
3.21 ± 0.02
m/s2
log(cgs)
Planetary mean density 0.643 ± 0.053
( 0.853 ± 0.070 )
ρjup
g cm-3
Planetary equilibrium temperature 1189 ± 16 K
Reference of detailed study 2012MNRAS.426.1291S  

 

HAT-P-3 does not have an entry in the catalogue of Rossiter-McLaughlin measurements.

 

HAT-P-3 has been examined as part of the Homogeneous Studies of Transiting Extrasolar Planets project. The details from this work have been given below. In most instances they are the same as the physical properties given above, but in some cases the Homogeneous Studies results given below have been superseded by newer analyses. Separate statistical and systematic errorbars are given where relevant.

Measured parameters Value Unit
Orbital velocity amplitude 89.1 ± 2.0 m/s
Stellar effective temperature 5185 ± 50 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.27 ± 0.05 dex
Orbital inclination 86.15 ± 0.19   degrees
Fractional stellar radius (R* / a) 0.1053 ± 0.0020  
Fractional planetary radius (Rpl / a)   0.01178 ± 0.00030   
Light curve analysis reference 2012MNRAS.426.1291S  
 
Derived parameters Value Unit
Stellar mass 0.900 ± 0.036 ± 0.044 Msun
Stellar radius 0.870 ± 0.016 ± 0.014 Rsun
Stellar logarithmic surface gravity 4.513 ± 0.020 ± 0.007 c.g.s.
Stellar mean density 1.365 ± 0.078 ρsun
Orbital semimajor axis   0.03842 ± 0.00050 ± 0.00063  AU
Planetary mass 0.584 ± 0.020 ± 0.019 Mjup
Planetary radius 0.947 ± 0.027 ± 0.015 Rjup
Planetary surface gravity 16.14 ± 0.90 m/s2
Planetary mean density 0.643 ± 0.052 ± 0.011 ρjup
Planetary equilibrium temperature 1189 ± 16 K
Safronov number 0.0526 ± 0.0019 ± 0.0009  
Main analysis reference 2012MNRAS.426.1291S  

 


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