Celestial hemisphere:  Southern  ·  Constellation: Serpens (Ser)  ·  Contains:  Eagle Nebula  ·  IC 4703  ·  M 16  ·  NGC 6611  ·  Star Queen
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M16, Eagle Nebula, No Focal Reducer, 25 Jul 2012, David Dearden
M16, Eagle Nebula, No Focal Reducer, 25 Jul 2012
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M16, Eagle Nebula, No Focal Reducer, 25 Jul 2012

Equipment

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Acquisition details

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Description

This turned out a lot better than the image from the night before. Stars are still a little football-shaped in the RA direction. There was a good amount of breeze.

Reprocessed with StarTools. Tightened the fat stars, healed the star shapes, and finished with Life:Moderate with a 90% saturation boost.

Date: 25 Jul 2012

Subject: M16, Eagle Nebula

Scope: AT8IN (no focal reduction!)

Filter: none

Mount: CG-5 (Synta motors)

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

Camera: DSI IIc

Acquisition: Nebulosity 3.0.9

Exposure: 36 x 300 s

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

Processing: auto color balance, digital development with sharpening, Keller stretch, power stretch, star edge sharpen. In one layer, unsharp mask. In separate layer, GREYCStoration. To the denoised layer in CS5, Astronomy Tools deep space & space noise reduction. Combine with Gaussian blurred layer mask. Saturation boost and levels.

Comments

Revisions

  • Final
    M16, Eagle Nebula, No Focal Reducer, 25 Jul 2012, David Dearden
    Original
  • M16, Eagle Nebula, No Focal Reducer, 25 Jul 2012, David Dearden
    B

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M16, Eagle Nebula, No Focal Reducer, 25 Jul 2012, David Dearden