Fireworks Galaxy
NGC 6946 or Fireworks Galaxy is a spiral galaxy in Cepheus and Cygnus
Observation data (J2000[1] epoch)
Right ascension	20h 34m 52.3s [1]
Declination	60° 09′ 14″ [1]
Redshift	0.000160
Distance	22.5±7.8 Mly [2]
Characteristics
Type	SAB(rs)cd
Notable features	Galaxy with lots of Supernovae
Other designations
UGC 11597, Arp 29, PGC 65001, SPB93 263, 8C 2033+599, 11HUGS 410, IRAS 20338+5958, IRASF 20338+5958
See also: Galaxy, List of galaxies

NGC 6946, also known as the Fireworks galaxy, Arp 29, and Caldwell 12, is a spiral galaxy in the constellation of Cepheus and Cygnus. It is about 22.5 million light-years away^[2] from Earth. It was discovered by William Herschel in September 9, 1798. It's highly obscured by interestellar matter, and it's very close to the galactic plane. It has a third of the Milky Way’s size.

Fireworks Galaxy has this name because of how many supernovae happened in the galaxy.^[3] The supernovae in this galaxy occur very frequently. In the last century a total of 9 supernovae were seen from this galaxy: SN 1917a, SN 1939c, SN 1948b, SNSN 1968d, SN 1969p, SN 1980k, SN 2002hh, SN 2004et, SN2008s.

• Spiral galaxy
• Supernovae

• APOD:2005 January 25 - NGC 6946
• NGC 6946 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
• Gemini Observatory Welcomes 2005 with Release of Galactic Fireworks Image - Gemini Observatory