M51 The Whirlpool Galaxy

Click on image to enlarge. Click here for maximum resolution

Click on image to enlarge. Click here for maximum resolution

Click on image to enlarge. Click here for maximum resolution

selected as astronomy picture of the day by astronomy magazine april 12, 2007

Taken on May 6 & 8, 2004 from my backyard in Castro Valley, Ca.

C14 imaging scope with Astro-Physics 0.67x CCD focal reducer stabilized with mirror locks and with camera angle adjuster

SBIG ST10XME imaging camera @ -26C

SBIG AO7 Adaptive Optics System

SBIG ST7E Guide/AO control camera @-15C

FLI CFW 1 filter wheel

Optec IR-Blocking LRGB Filters (50mm unmounted)

5 exposures of 20 minutes for Luminance

6 exposures of 10 minutes for Red, Green and Blue

Total exposure time = 4 hours 40 minutes

Maxim DL used for ST10XME control

AIP4WIN used for Deconvolution

Photoshop CS used for final touch up

Russ Croman's Sigma Reject Plugin for Maxim DL used for Darks, Flats, Biases and image combine

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