Wednesday, June 22, 2016

M27 Nebula

M27 Nebula

A picture was taken in the night from 19 to 20 of June under very bad conditions: full Moon plus haze. Taking into account that clear nights are quite rare phenomena this spring and summer here in Kyiv, I tried to make the picture even under such an unfavorable situation.

Setup: Canon EOS 600D + EF-S f/4-5.6 55-250mm IS II on EQ5 (unguided).

There were 43 individual frames (32 sec each) which were averaged using DeepSkyStacker (with 15 darks and 15 offsets). Then the result was processed with FITStacker (gamma correction, gradient background removing), RawTherapee, NeatImage (noise reduction) and, finally, was slightly modofied using FSViewer including 50% shrinking (there was 2x drizzling in DSS so now the image has its original resilution).

Annoteted image (nova.astrometry.net):
Size: 1.04x1.04 degree

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