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Rosette Nebula deep H-Alpha mosaic


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Hello everyone,

Perhaps not the most original target, but I always had a soft spot for this object.

I imaged the object for the first time in h-alpha 10 years ago and try to improve my version of it every 2 years.

It consist of a 2 panel mosaic taken with a 10" f/3.8 Newton. Each pane was exposed for 3 hours with

15 min subexposures. The camera was a sbig st-8300 with an Astrodon 5nm h-alpha filter.

Only processing was levels & curves + a small high pass filter in PS, no noise reduction used.

Be sure to check out the larger res versions on below links:

med res:


Full res:


Thanks for checking it out and clear skies!



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