
Albireo in Cygnus |
Albireo is a double star
seen in the sky as the foot of the Northern Cross; also it is
the head of Cygnus the swan. It is also known as Beta Cygni, as
the second brightest star in Cygnus. Visually, it is a
breathtaking sight, and can be seen in all its glory with
binoculars, which clearly split the pair, showing Beta 1 as a
magnitude 3.1 yellow star, and Beta 2 as a magnitude 5.1 blue
star. The two are separated by about 35 arc-seconds, and the
stars are some 400 light-years away from us.
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