NGC 6946, Fireworks Galaxy, 19 Jun 2014 (David Dearden)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: NGC 6946

NGC 6946, Fireworks Galaxy, 19 Jun 2014

I’m sticking with the Cepheus region for another night. Started from Eta Cephei and found the galaxy with the PicGoto. The breeze bounced my scope all over, so I consider these to be below average conditions. I fiddled with the chiller (which wasn’t working correctly last night); tonight it is working fine: 2.5 A, 10.5 °C down to 1°C.

Date: 19 Jun 2014

Subject: NGC 6946, Fireworks Galaxy

Scope: AT8IN + High Point Scientific Coma Corrector

Filter: none

Mount: CG-5 (Synta motors, PicGoto Simplificado)

Guiding: 9x50 Finder/Guider + DSI Ic + PHD 2.2.2 (Win 7 ASCOM)

Camera: DSI IIc chiller at 2.50 A, 10.5 to 1.0 °C

Acquisition: Nebulosity 3.2.0, no dither

Exposure: 46x300 s

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

Processing: StarTools 1.3.5.279 Crop; Wipe:Color & brightness 75%; Develop 88.71%; Color:Scientific, 250%; HDR reveal core; Deconvolute auto mask 2.6 pix; Life:Moderate; Track RNC 3.92%; Magic:Shrink 2 pix. Repeated HDR reveal core on another layer. CS6 Astronomy Tools Layer the double “reveal core” layer on top of the other at 66% transparency; Increase star color; Deep space noise reduction; Less crunchy more fuzzy; Levels; Astro Frame.

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Status	Advanced success
Started	...
Astrometry.net job	303290
PixInsight job	PQVEP7RTBVGYXAAKTAIG0LKEPHQ0OSUN
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	20h34m51s.97
RA (top/left)	20h36m36s.19
RA (top/right)	20h33m14s.76
RA (bottom/right)	20h33m08s.20
RA (bottom/left)	20h36m27s.91

Dec (center)	+60°08′15″.8
Dec (top/left)	+60°17′20″.7
Dec (top/right)	+60°18′35″.8
Dec (bottom/right)	+59°59′10″.8
Dec (bottom/left)	+59°57′54″.1

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NGC 6946, Fireworks Galaxy, 19 Jun 2014

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NGC 6946, Fireworks Galaxy, 19 Jun 2014

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