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Lesson Tag: Ophiuchus

M12, Globular Cluster in Ophiuchus

Target Type R. A. Dec. Constellation Magnitude Size M12 (NGC 6218) Globular Cluster 16h 47m 18s -01° 56′ 55″ Ophiuchus +6.69 16.0 arcmin Overview There are many globular clusters in the constellation of Ophiuchus, and we’ve previously provided guides on seeing M9, M10, and M19 (go to the Messier Objects section to find them – …

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Globular Cluster in Ophiuchus, M9

Target Type R. A. Dec. Constellation Magnitude Size M9 (NGC 6333) Globular Cluster 17h 19m 11s +18° 30′ 57″ Ophiuchus +7.7 12.0 arcmins Overview Charles Messier discovered this globular cluster in 1764 and described by him as “a nebula without stars”. It lies on the edge of the Milky Way in a darker ribbon, making …

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