Celestial hemisphere:  Southern  ·  Constellation: Aquarius (Aqr)  ·  Contains:  M 2  ·  NGC 7089
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M2, Globular Cluster in Aquarius, David Dearden
M2, Globular Cluster in Aquarius
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M2, Globular Cluster in Aquarius

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Description

Very easy find. M2 is quite bright and was in the field of view of the guide scope on my first try. I'm having some trouble balancing, and the dithering is a bit problematic. I'm getting football-shaped stars again. There is a little wind that is contributing to this. CCD at 13.5 °C. Even at 120 s subframes, I’ve blown out the core a little.

Date: 5 Sep 2012

Subject: M2, Globular cluster in Aquarius

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, 13 °C)

Acquisition: Nebulosity 3.1.0

Exposure: 31 x 120 s

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

Processing: Digital development with aggressive sharpening, power stretch, saturation boost in Neb 3; CS6 Astronomy Tools star color enhance, deep space, space noise reduction, and a little levels.

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M2, Globular Cluster in Aquarius, David Dearden