102-ED/STL-11000M/Astrodon LRGB filters/Losmandy G-11/Gemini
Exposures: LRGB: L 8 x 2 minutes, binned 2x2: R 8 x 2 minutes: G 8 x 2
minutes: B 8 x 2 minutes: RGB binned 3x3
Date: October 21, 2006
Location: Borrego Springs, California, USA
Technical Notes: Exposures were guided on the background stars. The exposures for each channel
were aligned on the comet nucleus using the Align Centroids feature in CCDSoft, and then
median combined. The resulting median-combined images for each channel were then aligned
again with respect to each other in CCSoft and the LRGB image created in Photoshop CS2.
Strong gradients were removed using Russell Croman's GradientXTerminator plug-in for Photoshop. Noise
reduction and a Gaussian Blur of 1 pixel were applied to both the luminance and RGB
images. The image displayed here is a crop of the central portion of the original image.