Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  Fireworks Galaxy  ·  NGC 6939  ·  NGC 6946
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NGC 6946: emphasizing star-forming H II regions, gigiastro
NGC 6946: emphasizing star-forming H II regions
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NGC 6946: emphasizing star-forming H II regions

Getting plate-solving status, please wait...
NGC 6946: emphasizing star-forming H II regions, gigiastro
NGC 6946: emphasizing star-forming H II regions
Powered byPixInsight

NGC 6946: emphasizing star-forming H II regions

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Description

LRGB image.

An old picture of the "Fireworks Galaxy" NGC 6946, taken with a 400mm lens (L channel), "received"

H II regions from an image recorded with a focal length of 135mm (RGB channels).

When with narrow band filters, the 135mm lens was set at f/2, in all other cases at f/2.8

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Sky plot

Sky plot

Histogram

NGC 6946: emphasizing star-forming H II regions, gigiastro