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A LITTLE GEM

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Posted by KC kctalentco@aol.com on October 14, 2000 16:50:21 UTC

A MOST INTERESTING WEBSITE SIR!

IT`S GREAT TO HAVE A SOURCE FOR SPECIFIC QUESTIONS RELATED TO ASTRO-P. DURING THE JUST PASSED GREAT PLAINS STAR PARTY JUST SOUTH OF KANSAS CITY, I RAN UPON A GREAT RESOURCE (AND SOURCE) OF ASTRO-P KNOWLEDGE...C&P PHOTOGRAPHIC EQUIPMENT OF KANSAS CITY.

MY QUESTION:WHAT OFF-AXIS GUIDER SHOULD I BUY FOR LONG EXPOSURE DEEP SKY TARGETS?
CHUCK`S ANSWER: OFF-AXIS GUIDERS REQUIRE A GUIDE STAR "IN THE SAME VISUAL FIELD" AS THE DEEP SKY OBJECT. THIS IS OFTEN A PROBLEM. INSTEAD OF A GUIDER, MOUNT A SMALL REFRACTOR ON YOUR LIGHT BUCKET...GIVING YOU A LARGER F-0-V AND THE ABILITY TO ADJUST IT`S CENTERING SCREWS WITHOUT AFFECTING THE PHOTOGRAPHIC TELESCOPE IT`S MOUNTED ON. RIG UP A LINED GRID OR DOT TO CENTER THE GUIDE STAR, OR PLACE IT ON THE EDGE OF F-O-V.

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