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Firstideas
So,nowhereyouhaveyourfirstastronomypicture,11ForexamplepurposestheimageselectedisapictureofM83throughaWideH-alphaand[NII]filter.whatdoyousee?,itisamonochromeimage,withdifferentlevelsofbrightness,slightlybig(8500x5000),itlookslikealotofstarsmakingaspiral.