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Friday, September 14, 2007

The best telescope on the Mountain

I took this picture of the Spacewatch 36 inch telescope the other morning as I was closing up. It was almost time for sunrise by the time I finished up, so it was brighter than usual in the dome. I couldn't resist taking a picture of the telescope. It was originally built in 1921 and put into a dome on the University of Arizona campus. It was moved up to Kitt Peak in the early 1960s and was a Newtonian telescope with a flat mirror at top to reflect the light out the side of the telescope. We took the Newtonian secondary out and put a mosaic camera at prime focus near the top of the tube. This image was taken at 18mm focal length with an exposure of 1/100 seconds at f/4, ISO 800.
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3 comments:

Tuguldur said...

that small refractor is still sitting there... :P

Jim said...

That "small refractor" is an Alvan Clark & Sons original from the 1880s.... It's also the oldest telescope on the mountain (followed by the 36 inch itself).

Tuguldur said...

I guess you guys don't use it much right? Why don't you just keep it in a safe place? or you mean is it in a safe place - piggy on the 36"?

BTW, I saw the 21" @ steward. It was obvious the dome was dedicated for much larger scope. :P