Scorpius

Challenge #1 – M4, Globular Cluster in Scorpius

Target Type R. A. Dec. Constellation Magnitude Size M4 (NGC 6121) Globular Cluster 16h 23m 35s -26° 31′ 33″ Scorpius 5.6 36.0 arcmins Overview Located relatively close to the center of the Milky Way, M4 is currently believed to be the third closest globular cluster to our solar system, being only 7,200 light-years away from …

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Ptolemy’s Cluster, M7

Target Type R. A. Dec. Constellation Magnitude Size M7 (NGC 6475), Ptolemy’s Cluster Open Cluster 17h 53m 51s -34° 47′ 00″ Scorpius +3.29 80 arcmins Overview This is a large cluster that is low on the horizon at its peak in a summer’s evening. Officially part of Scorpius, it’s easier to think of it near …

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