Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Fireworks Galaxy  ·  NGC 6946
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NGC6946 - Fireworks Galaxy, John Pancoast
NGC6946 - Fireworks Galaxy
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NGC6946 - Fireworks Galaxy

Getting plate-solving status, please wait...
NGC6946 - Fireworks Galaxy, John Pancoast
NGC6946 - Fireworks Galaxy
Powered byPixInsight

NGC6946 - Fireworks Galaxy

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Description

This image is a result of a test of exposures in November 2020. It is a combination of one hour each of 1,2,3-minute subs processed independently and the results stacked. I also took one hour of 5-minute subs.

There are some flat field issues and tracking and focusing issues in these pictures, but the interesting conclusion is that the 2- and 3-minute subs had the strongest signal and most contrast. For some reason, the 1-minute subs showed a lot of blue detail. The 5-minute sub was not included in the final picture, as it was the noisiest and had a strong reddish tint.

It will be good to experiment with star minimization ;-)

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NGC6946 - Fireworks Galaxy, John Pancoast

In these public groups

NOVAC