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Griffin Images of Comet Hale-Bopp

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ampo190_s.jpg39K ampo191_s.jpg101K ampo192_s.jpg54K
Observer: Ian Griffin
Location: Astronaut Memorial Planetarium & Observatory, Cocoa, Florida
Date: May 8, 1997 00:50-01:05 UT

1. 25 x 20 second exposures of Hale Bopp, taken through a Lumicon Swann Band filter have been processed using a rotational gradient filter, with rotation 10 degrees and amplification 10. Images obtained using 12 inch Maksutov, with SBIG ST8 CCD working in medium RESOLUTION MODE (18 micron Pixels) Images obtained between 00:50 and 01:05 UT.

2. 25 x 20 second exposures of Hale Bopp, taken through a Lumicon Swann Band filter have been combined and processed subtracting 99% of a 20 by 20 pixel masked version from 100% of the original image

3. 25 x 20 second exposuires of Hale Bopp (through a lumicon swann band filter!), and using CCD in Meidum resolution mode. have been combined and processed through a sobel edge finding filter to produce this image.

Ian Griffin
GRIFFIN.I@a1.brevard.cc.fl.us


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