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Durig Images of Comet Hale-Bopp

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Observer: Douglas Durig
Location: Cordell-Lorenz Observatory, Tennessee
Date: February 17, 1997 10:05-10:54 UT

We had two clear nights in a row and I had the opportunity to continue to explore differnt exposure times, processing techniques and imaging systems for Comet Hale-Bopp. I used a SBIG ST-6 with either a 12 inch Meade LX200 telescope at f/4 with a red UBVRI filter or a f/5.6 60 mm telephoto lens unfiltered. I used the following exposure times and processing techniques using SBIG CCDOPS software:

LX200	time(UT)	exposure	back		range	comments

hb3r	10:05		24x10 sec	0		18978	compare to hb6 to see movement
hb4r	10:29		1x30 sec	500		3500	short exposure
hb5r	10:32		24x10 sec	0		9000	tracking on comet
hbc6r	10:52		24x10 sec	0		51708	just the pseudonucleus
hbd6r	10:52		24x10 sec  	500		3500	full coma observed

60 mm

hb2	10:06		1x30 sec	1630		608	minor light pollution from horizon
hbtt6	10:54		24x30 sec	2500		12000	best view of comet

Dr. Douglas T. Durig
Director of The Cordell-Lorenz Observatory at The University of the South Sewanee, TN
ddurig@sewanee.edu


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