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Schedir, Shedir, Alpha Cassiopeiae, 18 Cassiopeiae

One of the five stars that form the famous 'W' of Cassiopeia. Though it is designated 'Alpha', it is not in fact the brightest of the five - that distinction belongs to neighbouring Cih. Schedar is an orange giant of variable magnitude, whose apparent brightness in the sky varies by 0.07 of a magnitude over a regular period.


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