Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Fireworks Galaxy  ·  NGC 6939  ·  NGC 6946
NGC 6946 & NGC 6939, Markus Blauensteiner
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NGC 6946 & NGC 6939, Markus Blauensteiner
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Description

NGC 6946 is an at least 17' large spiral galaxy in the constellation Cepheus. We look directly from above (or below? :-)) at the galaxy's disk, which is about 12 million light years away. The large blue structure in the western part of the galaxy is known as the Hodges Complex (Paul Hodge 1967). The object was long thought to be a young supergiant cluster. Meanwhile, however, it is assumed that it is a dwarf galaxy at NGC 6946.

NGC 6939 is located about 400 pc above the galactic plane. Its age is estimated at about 1 billion years.

Exposure time: L 48x10min / RGB 18x10min per filter, total 17 h.

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NGC 6946 & NGC 6939, Markus Blauensteiner