NGC 7635, Bubble Nebula, UHC-S, No Focal Reducer (David Dearden)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: Bubble Nebula · NGC 7635

NGC 7635, Bubble Nebula, UHC-S, No Focal Reducer

The Bubble is found easily by finding M52 first with the Telrad. Some smoke in the air still, but it is fairly calm tonight so at least my first few subs look very good. Chiller running at 12.0 °C. Guiding looks good. I think the UHC-S filter helped in this case; I was able to go to a little longer subframes without shoving the histogram too far to the right.

Date: 20 Aug 2012

Subject: NGC 7635, Bubble Nebula

Scope: AT8IN

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, 11 °C)

Acquisition: Nebulosity 3.1.0

Exposure: 55 x 300 s

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

Processing: Digital development, Keller stretch, power stretch; saturation boost, in Neb 3; CS6 Astronomy Tools local contrast enhance, color blotch, deep space noise reduction, star color enhance.

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Status	Basic success
Started	...
Astrometry.net job	6457136
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 7635, Bubble Nebula, UHC-S, No Focal Reducer

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NGC 7635, Bubble Nebula, UHC-S, No Focal Reducer

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