From the Extrasolar Planets Encyclopaedia : http://exoplanet.eu 
Planet : HAT-P-4 b
THE PLANET
- Basic data : 
 
Name HAT-P-4 b
Discovered in2007   
M.sin i0.68 (± 0.04) MJ ref.
Semi major axis0.0446 (± 0.0012) AU ref.
Orbital period3.056536 (± 5.7e-05) days ref.
Eccentricity0   ref.
Radius1.27 (± 0.05) RJ ref.
Ttransit4245.8154 HJD 2.450.000 ref.
Inclination89.9 (−2.2+0.1) deg. ref.
Update27/11/08   
- No molecule detected
 
- Remarks : 
 Alias BD +36 2593 b

Light Curve by Bruce Gary

- Other web pages : 
 CAS Exoplanet Transit Database
 28 related publications :  (sort by author)  (sort by date)
THE STAR
- Basic data :   
- More data : 
  - Basic data (from Simbad)
- Most recent ref (from ADS)
 
Name HAT-P-4
Distance310 (± 30) pc ref.
Spectral TypeF   
Apparent Magnitude V11.2   
Mass1.26 (−0.14+0.06) Msun ref.
Age4.2 (−-0.6+2.6) Gyr ref.
Effective Temperature5860 (± 80) K ref.
Radius1.59 (± 0.07) Rsun ref.
Metallicity [Fe/H]0.24 (± 0.08)   ref.
Right Asc. Coord.15 19 58   
Decl. Coord.+36 13 47