M16, Eagle Nebula, UHC-S (David Dearden)

Celestial hemisphere: Southern · Constellation: Serpens (Ser) · Contains: Eagle Nebula · IC 4703 · M 16 · NGC 6611 · Star Queen

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M16, Eagle Nebula, UHC-S

Had lots of trouble with the mount moving (or perhaps I was just very discriminating) so I threw out more than half the subs for this. Focused with N3 fine focus rather than Bahtinov mask. In the revised version I used high pass filtering with a layer mask to enhance the internal structure in the nebula.

Date: 22 Jun 2012

Subject: M16, Eagle Nebula

Scope: AT8IN + 0.5x Antares telereducer

Filter: Baader UHC-S

Mount: CG-5 (Synta motors)

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

Camera: DSI Ic

Acquisition: Nebulosity 3.0.6

Exposure: 22 x 300 s

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

Processing: Digital development with sharpening, Keller stretch, power stretch, GREYCStoration, auto color balance, saturation boost, star edge tighten, unsharp mask in N3, CS5 levels, Astronomy Tools deep space noise reduction, saturation boost

Final
Original
B

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Status	Basic success
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Astrometry.net job	6518525
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