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Left image, March 3, 2005; Right images, July 7, 2005.  Note new star in
center of frame of right hand images.  This is Supernova 2005cs in M51,
discovered June 28, 2005.  For more information on SN2005cs, click on
right side image above, or
HERE.
M51
Whirlpool
Galaxy
M51,  The Whirlpool Galaxy

Date:  March 3, 2005

Camera: SBIG ST10XE
Filters:  AstroDon L,R,G,B (CFW8A filter wheel)
Camera control software:  CCDSoft
Focal reducer:  AP 0.67
Guiding/adaptive optics:  internal autoguider
Camera temperature:  -20C
Image Acquisition Software:  None

Telescope:  RCOS 16 Carbon Tube, Aries optics, F9
Telescope control software:  RCOS TCC, TheSky6
Mount:  Paramount ME (MKS 4000)

Subexposures:
Luminance:  5 x 8 minute, binned 2x2
RGB:  5 x 2 minute, binned 3x3

Conditions: Average.
Processing: CDSoft, CCDSharp (Luminance only),  MaximDL, Registar, Sigma,
Photoshop CS.