Celestial hemisphere:  Northern  ·  Constellation: Vulpecula (Vul)  ·  Contains:  Dumbbell nebula  ·  M 27  ·  NGC 6853  ·  PK060-03.1
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M27, The Dumbbell Nebula, David Dearden
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M27, The Dumbbell Nebula

Equipment

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Acquisition details

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Description

Easily found the Dumbbell visually with the Telrad. Some smoke or haze in the air tonight and some intermittent variable breeze shaking the mount.

Revised with StarTools using HDR:Reveal Core, Life:Isolate.

Date: 7 Aug 2012

Subject: M27, Dumbbell Nebula

Scope: AT8IN

Filter: none

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 3.1.0

Exposure: 33 x 300 s

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

Processing: digital development with sharpening, Keller stretch, saturation boost, unsharp mask 75% 7 pixels (one layer) in N3, CS5 Astronomy Tools denoise layer color blotch reduction, deep space, space noise reduction, layer mask with Gaussian blur combine sharp & denoise layers; AT star color enhance, enhance DSO/reduce stars, levels.

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  • Final
    M27, The Dumbbell Nebula, David Dearden
    Original
  • M27, The Dumbbell Nebula, David Dearden
    B

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M27, The Dumbbell Nebula, David Dearden