DEEP-SKY TOUR
May 21, 2020
3 minutes
1 M13
The Keystone asterism plays host to the spectacular object M13, the Great Globular in Hercules, located one third of the way along the line from Eta (e) to Zeta (z) Herculis. M13 is a treat through any instrument. A 150mm scope partially resolves the cluster’s core. Look out for three dark dust lanes converging to form a pattern called ‘the propeller’ southeast of the core. A 200mm scope shows more stars individually
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