M51 (NGC 5194) in Canes Venaciti.

Right Ascension: 13h:29.9m, Declination: 47d:12m(deg:m)
Visual Brightness: 8.4 Mag, Apparant Dimension is 11.2 x 6.9 arc minutes, Distance: 37,000(kly)

M51,a face on spiral galaxy with neighbor, The Whirlpool Galaxy. Nine minute exposure on CCD.

Optics: Celestron C-8 f6.3 for 1280mm, Schmidt Cassegrain
Adapter: Celestron f6.3 reducer
Date: 05/20/2006sp, Time: 03:48:00 UTC
Exposure: 6 Luminance images of 300 seconds each
Filter: SBIG CFW8-A clear
Resolution: 800 x 600
Guiding: SBIG ST-2000XM with internal TC-237 guider
Acquisition: SBIG ST-2000XM camera
Mount: Losmandy G-11 with Gemini GOTO
Software: SBIG CCDOPS ver 5.41B6NT
notes: Autodark added to each image. Hot and cold pixel removal, soft DDP, stacked in CCDSoft

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© , 2006
Last edited:9/4/2006, by Don Lewis, Wye Mountain Observatory