
Photographer:
Niels V. Christensen
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.
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