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Photographer:

Alan Potts

Email:

pott_sa@tiscali.co.uk

Location of Photo:

Lincoln, UK

Date/Time of photo:

24th July, 2016

Equipment:

10-inch Newtonian (f/4.7) and coma corrector. Nikon D3300 DSLR at 1600 ISO.

Description:

An 18m 30s (stack of 10s subframes) exposure of the Fireworks galaxy (without a SN here) and the neighboring (line-of-sight) open cluster NGC 6939. This is a cropped frame, processed in Photoshop for the galaxy area, the cluster area and then overall frame before converting to a negative, black and white image. The method was used to avoid problems with the vignetting.

Website:

https://www.photocrowd.com/photographer-community/49727/

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