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Delta Cephei (130mm 6D).jpg
Delta Cephei, the double star and archetype variable syar in Cepheus, here just resolved in a general field shot. Taken from home Nov. 25, 2016 with the 130mm AP f/6 apo refactor with the 6x7 field flattener and Canon 6D at ISO 800 for a stack of 4 x 3 minute exposures.
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- © 2016 Alan Dyer
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