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
Data/telescope used for discovery HAT  
Right ascension 13 44 22.59 h m s
Declination +48 01 43.2 d m s
Right ascension (decimal) 206.09412 degrees
Declination (decimal) 48.02867 degrees
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   2457150.39472 ± 0.00058     HJD or BJD
Orbital period 2.89973838 ± 0.00000027 days
Reference for orbital ephemeris   2018A+A...613A..41M  

 

Physical properties from the most recent detailed study:
 
Quantity Value Unit
Stellar effective temperature 5190 ± 80 K
Stellar metal abundance ([Fe/H] or [M/H])   +0.24 ± 0.08 dex
Stellar mass 0.925 ± 0.045   Msun
Stellar radius 0.850 ± 0.023 Rsun
Stellar logarithmic surface gravity 4.545 ± 0.023 c.g.s.
Stellar mean density 1.51 ± 0.11
( 2.13 ± 0.16 )
ρsun
g cm-3
Orbital eccentricity 0.0  
Orbital semimajor axis   0.03878 ± 0.00065  AU
Planetary mass 0.595 ± 0.024
( 189.14 ± 7.63 )
Mjup
Mearth
Planetary radius 0.911 ± 0.034
( 10.21 ± 0.38 )
Rjup
Rearth
Planetary surface gravity 17.8 ± 1.2
3.25 ± 0.03
m/s2
log(cgs)
Planetary mean density 0.735 ± 0.075
( 0.975 ± 0.099 )
ρjup
g cm-3
Planetary equilibrium temperature 1170 ± 17 K
Reference of detailed study 2018A+A...613A..41M  

 

Entries in the catalogue of orbital obliquity measurements:
 
Reference λ (degrees)
Mancini et al. (2018)   21.2   ±   8.7  
Bourrier et al. (2023)   −25.3   + 29.4   - 22.8  

 

 


Page generated on 2024/05/08           John Southworth   (Keele University, UK)