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Hamal

Alpha Arietis, 13 Arietis

Orange Star in Aries

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Proper Name	Hamal
Bayer Designation	Alpha Arietis
Flamsteed Number	13 Arietis
HR (BSC)	617
HD	12929
Constellation	Aries
Right Ascension	2h 7m 10s
Declination	+23° 27' 45"
Distance	66 light years 20 parsecs
Magnitude	Apparent: +2.0 Absolute: +0.5
Spectral Class	K2III Orange Giant
Planets in this system	Hamal b (Alpha Arietis b), gas giant
Optimum Visibility	November
Notes	This old orange star has expanded into the giant phase of its existence. It has a planetary companion, a gas giant about twice the size of Jupiter designated Alpha Arietis b, orbiting the star at a distance comparable with that of the Earth around the Sun.

A variable orange giant star, the brightest in the constellation of Aries. Its name, Hamal, comes from the Arabic for 'sheep'.

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