NGC 772, Nautilus Galaxy, 6 Nov 2012 (David Dearden)

Celestial hemisphere: Northern · Constellation: Aries (Ari) · Contains: NGC 770 · NGC 772

NGC 772, Nautilus Galaxy, 6 Nov 2012

The Nautilus Galaxy was fairly easy to find. It is visible in the guide scope with 15 s exposures, and once I found it I could see the core in the imaging scope at 5 s. Conditions tonight are very good save for some light wind. I have the coma corrector properly spaced for no focal reducer, and tonight I remembered my IR filter, so I'm hopeful this will turn out better than last night's efforts. Chiller running at 4 °C to begin the run.

The revision was stacked in Nebulosity 3 (exact same stack), but all the post-processing was done in StarTools 1.3

Date: 6 Nov 2012

Subject: NGC 772 (Nautilus Galaxy)

Scope: AT8IN+High Point Scientific coma corrector spaced properly

Filter: None

Mount: CG-5 (Synta motors)

Guiding: Orion ST80 + DSI Ic + PHD 1.13.6

Camera: DSI IIc (1.5 A, 6.0 V for half the run, T = 4 °C)

Acquisition: Nebulosity 3.1.2, no dither

Exposure: 48/60 x 300 s

Stacking: Neb 3, bad pixel map & flats, bias included, normalize first, trans+rot align, 1.75 SD stack

Processing: Digital development with 1 level sharpening, power stretch, Keller stretch, saturation boost, GreyCStoration; CS6 GradientXTerminator, Astronomy Tools deep space & space noise reduction, star color enhance.

Final
Original
B
C

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Status	Basic success
Started	...
Astrometry.net job	6468094
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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