Spray painting a 70" mirror??
Posted 29 November 2012 - 02:50 PM
Posted 14 December 2012 - 09:06 AM
It sounds like the 70" guy wants to observe with this monster. It also sounds like this thing is a really fast scope, like an f 1.5 or something close to it. Since it was supposed to be a spy satelitte it was created for a ccd camera in the place of the secondary.
So here is my question for you optics experts. Can this mirror focus an image that can be registered by a human eye? And, if so, what kind of eyepiece can be used?
Posted 14 December 2012 - 09:11 AM
Posted 14 December 2012 - 10:28 AM
I didn't really get a good look at the structure in the video I saw. However, there are limits to what you can put into space, especially in the 1970's. I'm assuming they weren't planning on using a Saturn rocket for this, so the tube would have to be a reasonable size. Not much bigger than a Gemini capsule, for example?
Posted 15 December 2012 - 12:16 AM
Posted 15 December 2012 - 02:19 AM
Posted 01 January 2013 - 07:47 PM
I think these guys know exactly what they are doing.
Cheers from this corner of the peanut gallery! These guys have a MASSIVE mirror on their hands; I can't wait to see what they do with it. Never second-guess a guy who loads a 40" telescope into a pickup truck and takes it around to show off the heavens!
Posted 02 January 2013 - 03:42 PM