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Forum: Troubleshooting and Beginner Help
09-13-2017, 07:15 PM
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That all makes sense. When they quote just 150/2250, does that mean the OTA length is assumed?? and that it's the same as saying 150/900/2250 ?
In any case, this means I've got specs for the wrong scope!! FYI, the scope I'm researching (which is in pieces in storage at my observatory and will soon relent to my curiosity) was originally a 20 inch Cass/Newt combo that underwent many location and configuration changes and ended up here as a 16 inch.
Pic 1 The CATT in use under purpose built dome at Perth Obs
Pic 2 The CATT in the University of WA Physics Dept workshop
 Thanks folks!
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Forum: Troubleshooting and Beginner Help
09-13-2017, 12:34 AM
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Hi, I'm newbie to this forum. I am an astronomy masters student researching old telescopes at Perth Observatory in Australia. I saw a post mentioning a Zeiss 150/900/2250 cassegrain. One of the scopes I'm looking at has this string of numbers inside the old record book. What does it mean pls?
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