Simcoe Skies Astronomy

C12 - NGC 6946 - Galaxy in Cygnus

C12
C12 - An Irregular Galaxy
Interesting non-symmetrical galaxy!

Date: Sept 18/04
Location: Cygnus (the Swan)
Magnitude: 8.9

Exposures: 28 best of 40
Exposure length: 15 seconds
Amp on setting: OFF
Brightness: 100
Gain: 50

Notes: Apparently I was suffering from poor polar alignment, as star trails are quite evident in this 15-second exposure. Also, the image seems a little out of focus. A longer, better-focused exposure (with better alignment) would likely provide more intricate detail of this galaxy. Dark frame subtraction wasn't quite optimized either - note amp glow at top left. Still, it's an intriguing target!

C12 Reprocessed Same data, reprocessed Aug 2005, noise reduction with NeatImage, contrast/brightness adjustment with Photoshop (now that's better!)

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	C12 - An Irregular Galaxy Interesting non-symmetrical galaxy! Date: Sept 18/04 Location: Cygnus (the Swan) Magnitude: 8.9 Exposures: 28 best of 40 Exposure length: 15 seconds Amp on setting: OFF Brightness: 100 Gain: 50 Notes: Apparently I was suffering from poor polar alignment, as star trails are quite evident in this 15-second exposure. Also, the image seems a little out of focus. A longer, better-focused exposure (with better alignment) would likely provide more intricate detail of this galaxy. Dark frame subtraction wasn't quite optimized either - note amp glow at top left. Still, it's an intriguing target!

	Same data, reprocessed Aug 2005, noise reduction with NeatImage, contrast/brightness adjustment with Photoshop (now that's better!)