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Gum 68

astrofotografie, astronomie, astronomy, astrophotography, b&w, black and white, bw, emission nebula, emissionsnebel, fotografie, gum, gum68, narrowband, photography, rcw, rcw133, schwarzweiß, scorpius, sh2, sh2-13, sharpless, sw
Gum 68 / Sh2-13 / RCW 133 – Emission Nebula in Scorpius – HSS w/RGB Stars v1

Took me a while to create something with presentable colors from the narrowband data of this obscure nebula in Scorpius, the previous H-alpha black and white version was easier.

This is a bicolor image with R=H-alpha, G=SII, B=SII and mainly H-alpha with a bit of SII used as luminance, plus calibrated RGB stars screened on-top.

More details at Astrobin.

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