BINOCULAR TOUR
Jun 18, 2020
2 minutes
With Steve Tonkin
1. Delta Cephei
10 x 50
Delta (ð) Cephei is an attractive double star with a deep yellow primary and a brilliant white 6th magnitude secondary, separated by 41 arcseconds. The primary gave it’s name to an entire class of variable stars, the Cepheid variables, for
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