M13: A Great Globular Cluster of Stars : M13 is one of the most prominent and best known globular clusters. Visible… http://pic.twitter.com/FMWINVv8PD
— Bits and Bargains (@AndiPenny1) July 28, 2016
from Twitter https://twitter.com/AndiPenny1
July 28, 2016 at 05:27AM
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