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eSky © copyright
Mark Fisher
1999-2008
Castor
Alpha Geminorum, 66 Geminorum
A complex
multiple
star
that shines brightly in the north of
Gemini
. Though designated 'Alpha', it is not the
brightest
star
in its
constellation
: its
magnitude
is actually somewhat less than that of its mythical twin,
Pollux
.
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Related Entries
Gemini
Spectral Classification
Winter Hexagon