NGC 6946 (Arp 29) (Gary Imm)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: Fireworks Galaxy · NGC 6946

NGC 6946 (Arp 29)

This object, nicknamed the Fireworks Galaxy, is a spiral galaxy located 18 million light-years away in the constellation of Cepheus at a declination of +60 degrees. This galaxy spans 11 arc-minutes in our apparent view, which corresponds to a diameter of 60,000 light-years. Although the galaxy looks almost face-on, it is actually inclined by 40 degrees.

The view of this galaxy is a bit obscured by the interstellar matter of our Milky Way galaxy, since our view of this galaxy is quite close to the galactic plane. The type of the galaxy is SAB(rs)cd, which means that it is a spiral shaped galaxy with a poorly developed bar across the middle and an inner confused ring. Vorontsov-Velyaminov rows are seen in the spiral arms. The blue super star cluster to the right of center consists of over 20 star clusters, with the whole blue complex taking on an interesting circular shape.

It is nicknamed the Fireworks Galaxy because so many supernovae have been spotted there in the last hundred years. Nine supernovae have been observed in the galaxy’s spiral arms in the past century, more than any other galaxy.

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Description: Comparison to Original Arp Image

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Status	Advanced success
Started	...
Astrometry.net job	3963434
PixInsight job	ZZ41WB72T5MSLXJV6WDXZ0QZBI6VS365
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	20h34m51s.781
RA (top/left)	20h36m13s.748
RA (top/right)	20h33m22s.790
RA (bottom/right)	20h33m30s.477
RA (bottom/left)	20h36m20s.980

Dec (center)	+60°09′09″.15
Dec (top/left)	+60°17′48″.16
Dec (top/right)	+60°16′30″.30
Dec (bottom/right)	+60°00′26″.96
Dec (bottom/left)	+60°01′44″.73

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NGC 6946 (Arp 29)

NGC 6946 (Arp 29)

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NGC 6946 (Arp 29)

NGC 6946 (Arp 29)

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