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Contains:  NGC 6946
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NGC6946 - Fireworks galaxy, 


            Roberto Colombari
NGC6946 - Fireworks galaxy

NGC6946 - Fireworks galaxy

Technical card

Resolution: 5000x4300 job: 592000

RA center: 308.717 degrees

DEC center: 60.148 degrees

Orientation: 90.381 degrees

Field radius: 0.207 degrees


NGC6946 - Fireworks Galaxy
First I'd like to thank Bob Fera​ for letting me use his beautiful data as RGB.
This is an assembling of Subaru and Hubble Space Telescope frames mixed up with Bob data to obtain a color image.

The filters that I have assembled from Subaru are: G+, R+, V and B.
I have used HST data just for the galaxy core: 814nm wide from ASC.

Subaru assembled panels: approx. 312
HST panels: 1

NGC 6946, (also known as the Fireworks Galaxy, Arp 29, and Caldwell 12), is an intermediate spiral galaxy about 18 million light-years away,[2] in the constellations Cepheus and Cygnus. It was discovered by William Herschel on September 9, 1798. NGC 6946 is highly obscured by interstellar matter of the Milky Way galaxy, as it is quite close to the galactic plane. The diameter of the galaxy is approximately 40,000 light-years or just about a third of the size of the Milky Way.[3]

Source: Wikipedia

Data: NAOJ, NASA, ESA, Bob Fera
Assembling and processing: Roberto Colombari

Size: 87% of the Subaru full resolution



Roberto Colombari

Sky plot

Sky plot


NGC6946 - Fireworks galaxy, 


            Roberto Colombari

In these public groups

Imagers of Italy