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Photographer:

Niels V. Christensen

Email:

nvcchr@mail.dk

Location of Photo:

Copenhagen, Denmark

Date/Time of photo:

20,21,22 April-2018

Equipment:

Please check this link info. https://www.astrobin.com/343384/?nc=user

Description:

NGC4631 color picture. Exposures done like this: 20 April-2018, R=38x60sec, G=36x60sec, B=42x60sec. 21 April-2018, Ha=6x300sec, OIII=6x300sec, Lum=52x60sec. 22 April-2018, Ha=10x600sec, OIII=11x300sec.

Website:

https://www.astrobin.com/users/nvcchr1/

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