I am helping the people at Watoga State Park in Pocahontas County, WV get certified as a Dark Sky Preserve by the IDA. As part of their obligation they must have educational/outreach activities at the park. Someone donated an old C8 to them and I am refurbishing it.
The scope has been in a shed for most of the last 10 years. It has fungus on the inside of the corrector plate and also on the primary which I will be cleaning off. The donor said he got good views with the scope but he got it secondhand and doesn't know anything about its former life. It runs off of a 9V battery and has a port for a hand controller (which is MIA), a receptacle labeled Dec, and a receptacle labeled 12VDC.
I'd like to register the scope here and also see if you can give me any info or background on the scope. Thanks.
Here are a couple of pics:
You appear to have a late 1990's Celestar 8, from the serial number we would guess circa 1996.
There were variations of this model, including a "Deluxe" - but I can't tell from your photos which version or accessories would be present. I can make out a tripod, some secondary holder covers (2?), a corrector cover, wedge and the customary steamer trunk case. I see no finder, but the OTA has some sort of provisions for piggy-back mount.
In this period, these scopes were transitioning to a more electronics dependent form, some with computerized mounts and pointing databases. (If you possess all the electronics for it)
OTA cleaning is not something I recommend, and certainly not until you have checked it out on a few familiar objects. Faithful disassembly and cleaning is possible, but a baseline of visual performance will go a long way to assuring it's been re-assembled and collimated correctly. Please seek a thorough understanding and help in another thread before proceeding with any disassembly into the OTA. This is not a trivial task. Mirrors were manufactured as a matched set and require their original orientation be maintained to a fine degree.
Community outreach is great to see, and I hope you find it rewarding. Dark skies are getting more and more scarce, so don't waste them, and enjoy while you can. Blessing of Park administration goes a long way to fostering this activity, as it requires access hours and provisions beyond the customary norm.
I think these forums can be of assistance to you in this endeavor. [of course you know all that - being no stranger here]
Good Luck, and thank you for the entry. Please post additional photos of included items, accessories and electronic components if you wish. These are often overlooked or misplaced as time passes and a visual record of them here will help others who come after.
Edited by RSX11M+, 26 July 2021 - 09:28 PM.