SN10 question

Recently I bought a used Meade SN10. It is in fairly good shape, but I noticed a strange thing.

At the primary end of the scope is a piece of black plastic or plastic-covered cardboard that is loose and moves around. Apparently, it was held in place by glue. When it is really off-center, the actual glass of the mirror back is visible and touchable.

I'm thinking of taking it to the Chiefland Fall Star Party next week, so I wonder if exposing the back of the mirror to the cold, damp night air would be a problem. If so, how do I fix it? Will a glob or two of silicone adhesive take care of it or do I need to seal it off well?

I am considering replacing that cheap-assed plastic focuser with a Moonlight CR with the DC motor drive option.

Anybody have any experience with that set-up?

This thing is a real beast! My wife, looking at the SN10 sitting on my G-11, said its sheer size was intimidating. Lugging it and the G-11 around will build up my upper body strength.

I'm thinking of taking it to the Chiefland Fall Star Party next week, so I wonder if exposing the back of the mirror to the cold, damp night air would be a problem.

In general, you want to expose the mirror to that cold night air, otherwise you will suffer thermal equilibrium problems all night long.

Jon

OK, I'm heading out for Chiefland tomorrow (Wednesday). I was hoping to leave earlier, but am waiting for the arrival of the heated dew shield I ordered from Scope Stuff. Should be here Wednesday morning and I will drive the 3 hours north to Chiefland. I will perform a weight lifter's exercise in 1) setting up the G-11, which is probably the equivalent of 15 minutes in a gym and 2) setting the SN10 onto the G-11. That routine should burn off all excess carbs and has me thinking seriously of a Scoperoller.

I will also see if the SN10 will work on my new Sirius EQ-G. Probably not, but it's worth a try.

I will take some photos and post them here. Plus, I will give you a report on how the scope performs for Ralph (or anybody else who is interested).