Group Challenge: M51 - The Whirlpool Galaxy  
M51 - Whirlpool Galaxy (wide field)

M51 - Whirlpool Galaxy (wide field)(Darrell Dodge)

Acquisition Date : January 28, 2011
Camera : Honis-modified Canon 450D w/ Baader UV/IR cut filter
Camera Settings : ISO 1600; 6x120s, 3x180s, 4x60s (total: 25 min)
Telescope : AstroTech AT8IN Imaging Newtonian, focused with Spike-A Bahtinov Mask
Mount : Celestron CGE, guided with SSAG & PHD thru AT72ED refractor
Adapter / Prime / Afocal / Other : Prime; Baader MPCC
Processing Package / Processing Applied : Processing: Nebulosity 2.3: master darks, align and stack, background offset, color correction; Ps CS5: crop, levels, curves, unsharp mask, color noise reduction.
Web Site : http://www.tinyurl.com/35vnbuv
NOTES : Taken at Denver Astro dark sky site, Deer Trail, CO.

Position 2 overall, due to these votes:
Vote for this image:2 votes


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