M27, The Dumbbell Nebula (David Dearden)

Celestial hemisphere: Northern · Constellation: Vulpecula (Vul) · Contains: Dumbbell Nebula · M 27 · NGC 6853

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M27, The Dumbbell Nebula

In the revised version, I did auto color balance first in Nebulosity, and stretched with Keller stretch and power stretch rather than using digital development. No noise reduction this time, but a lot of saturation boost. In Photoshop, I did more levels and curves, and used a high pass filter with a layer mask to bring out internal structure in the nebula.

In the last revision, I used StarTools with HDR:Reveal Core and Life:Moderate.

Date: 25 Jun 2012

Subject: M27, Dumbbell Nebula

Scope: AT8IN+ 0.5x Antares telereducer

Filter: Baader UHC-S

Mount: CG-5 (Synta motors)

Guiding: Orion ST80 + 0.5x Antares telereducer + DSI Ic + PHD

Camera: DSI IIc (cooled at 2 A, 7.5 V)

Acquisition: Nebulosity 3.0.6

Exposure: 47 x 300 s

Stacking: Neb 3, bias included, normalize first, trans+rot align, 1.5 SD stack

Processing: digital development with sharpening, power stretch, saturation boost, GREYCStoration in N3, CS5 levels + curves, Astronomy Tools color blotch reduction, star color enhance, local contrast enhance

Original
B
Final
C

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Status	Basic success
Started	...
Astrometry.net job	7130416
PixInsight job	n/a
PixInsight queue size	n/a
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