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Lesson Tag: Hydra

M83, Southern Pinwheel Galaxy

Target Type R. A. Dec. Constellation Magnitude Size M83 Spiral Galaxy 13h 37m 01s -29° 51′ 56″ Hydra +7.1 13.6×13.2 arcmin Overview In this challenge, we’re hunting for M83, which is a beautiful, archetypal, spiral galaxy. The brightest galaxy in the snake constellation is also known as the Southern Pinwheel Galaxy, and is located a …

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M48, Open Cluster in Hydra

Target Type R. A. Dec. Constellation Magnitude Size M48 Open Cluster 8h 13m 43s -05° 45′ 00″ Hydra +5.8 30 arcmins Overview M48 was known as the ‘missing Messier’ because Charles Messier, for whom the catalog is named, wrote the wrong coordinates down. He made note of a cluster that with a declination coordinate 5° …

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