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Getting plate-solving status, please wait...
Sharpless objects 232, 231, 233 and 235, 



Technical card

Resolution: 1308x984

Dates:March 23, 2015

Frames: 72x1200"

Integration: 24.0 hours

Avg. Moon age: 3.51 days

Avg. Moon phase: 13.31% job: 580588

Locations: Astro Anarchy Observatory, Oulu, Finland, Finland


Please, use a link under the image above to see more images and info in my blog.

This was one of the most difficult targets I have shot lately, very diffused and dim. Now when the season is about to end, up here 65N, we have had clear skies one after another and I have collected exposures to unveil this target. Total exposure time is now about 24h hours. Image is a two frame mosaic.

There seems to be some interesting looking structures in this emission nebula. One of them can be seen at bottom right, just under the larger nebula. It looks like some kind of circular formation with several dim concentric layers. An other one is a very small area emitting light from an ionized oxygen (O-III) at center of the Sh2-232 at right.



License: Attribution-NonCommercial-NoDerivs Creative Commons


Sharpless objects 232, 231, 233 and 235,