Notes for star HAT-P-4

From the Extrasolar Planets Encyclopaedia : http://exoplanet.eu

Star : HAT-P-4

THE STAR

- Basic data :

- More data :
	- Basic data (from Simbad) - Most recent ref (from ADS)

Name	HAT-P-4
Distance	310 (± 30) pc	ref.
Spectral Type	F
Apparent Magnitude V	11.2
Mass	1.26 (_−0.14^+0.06) M_sun	ref.
Age	4.2 (_−-0.6^+2.6) Gyr	ref.
Effective Temperature	5860 (± 80) K	ref.
Radius	1.59 (± 0.07) R_sun	ref.
Metallicity [Fe/H]	0.24 (± 0.08)	ref.
Right Asc. Coord.	15 19 58
Decl. Coord.	+36 13 47

PLANET

- Basic data :

Name	HAT-P-4 b
Discovered in	2007
Mass	0.68 (± 0.04) M_J	ref.
Semi major axis	0.0446 (± 0.0012) AU	ref.
Orbital period	3.056536 (± 5.7e-05) days	ref.
Eccentricity	0	ref.
Radius	1.27 (± 0.05) R_J	ref.
T_transit	4245.8154 HJD 2.450.000	ref.
Inclination	89.9 (_−2.2^+0.1) deg.	ref.
Update	27/11/08

- Molecules detected :

Name	HAT-P-4 b
Molecules	None

- HAT-P-4 Remarks :
	Alias BD +36 2593 b Light Curve by Bruce Gary

- HAT-P-4 Other web pages :
	CAS Exoplanet Transit Database