sunnuntai 22. elokuuta 2010

Sh 2-86, NGC 6820 & NGC 6823



Sharpless catalog Sh 2-86 is a faint emission nebula in Vulpecula. In the middle of the nebula locates open cluster NGC 6823. Final image 4.10.2010. Total exposure of 8 h: Ha 240 min, OIII 120 min and SII 120 min. Processing: Adobe Phtotshop and Iris.



My first colcour image (Ha:OIII:OIII), exposure: Ha 240 min + OIII only 36 min. (3x12min). And then clouds came after three OIII frames...



Project continues. More hydrogen-alpha at the night 1.-2.9. Now I have total 240 minutes Ha...



Beginning of my new project. 1 h 48 min hydrogen-alpha.

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