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Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  Fireworks Galaxy  ·  NGC 6946
ngc6946 - 620 60 secs unguided subs taken during the nights of the 8th and 11th July 2022, Stefano Ciapetti
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ngc6946 - 620 60 secs unguided subs taken during the nights of the 8th and 11th July 2022

ngc6946 - 620 60 secs unguided subs taken during the nights of the 8th and 11th July 2022, Stefano Ciapetti
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ngc6946 - 620 60 secs unguided subs taken during the nights of the 8th and 11th July 2022

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Acquisition details

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Description

This image is the sum of 620 60 secs unguided subs taken during the nights of the 8th and 11th July from my home terracce. Imaging train was: Newton 250 F 3.9 Orion USA, QHY268M Camera, Explore Scientific 1x coma corrector, primaluce lab UHC filter, on top of the Ioptron CEM60EC.
Aquisition, stacking and processing (crop, deconvultion to fix star elongation, low pass) with Astroart 8.
Many issues with this image:

1 - didn't fix yet correct distance between coma corrector and camera
2 - a lot of dirt on the filter that was not complitely correct by the flat
3 - a lot of star elongation due to some troubles on the mount.

Color information, that will be in the version B, coming from 300 120 secs subs taken with a C5 + F 6.3 reducer + modded Nikon d5600 put on top of the newton.

NGC 6946, sometimes referred to as the Fireworks Galaxy, is a face-on intermediate spiral galaxy with a small bright nucleus, whose location in the sky straddles the boundary between the northern constellations of Cepheus and Cygnus. Its distance from Earth is about 25.2 million light-years or 7.72 megaparsecs, similar to the distance of M101 (NGC 5457) in the constellation Ursa Major. Both were once considered to be part of the Local Group, but are now known to be among the dozen bright spiral galaxies near the Milky Way but beyond the confines of the Local Group. NGC 6946 lies within the Virgo Supercluster. Ursa Major Cluster. (wikipedia)

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  • ngc6946 - 620 60 secs unguided subs taken during the nights of the 8th and 11th July 2022, Stefano Ciapetti
    Original
  • Final
    ngc6946 - 620 60 secs unguided subs taken during the nights of the 8th and 11th July 2022, Stefano Ciapetti
    B

B

Description: color information added from 300 120 secs unguieded subs taken with a C5 + F 6.3 reducer and a modded Nikon d5600 put on top of the Newton.

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ngc6946 - 620 60 secs unguided subs taken during the nights of the 8th and 11th July 2022, Stefano Ciapetti

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Fast Newtonians
Imagers of Italy
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