A couple of nights ago I was at a friend's house, trying to show him Mars. The weather wasn't cooperating very well, so we hung out in his backyard, waiting for holes, and eventually decided tonight was not the night.
I had left the endcap from my scope within arm's reach just off the path we were set up on. I "clunked" the cap on, and felt something cold and wet on the top of the lid...it was a giant, fat slug. Ugh. I took the cap off, flung the beastie into the lawn, and a thought occurred to me...was there, by any chance, a slug on the *other* side of the cap, too...nahhhh, what are the chances of that?
I peered into the tube with my red light...oh, great! There was a slug on my mirror! There was a SLUG on my MIRROR!!!
Tonight I get supplies - alcohol, distilled water, and cotton balls (I've never cleaned the mirror before). I've soaked the mirror in a water/alchohol mixture with a drop or two of dish detergent. I've wiped, ever so gently, with cotton balls while the mirror is submerged...and the main "splat" mark is still there...
I'm not too concerned yet, mostly I just wanted to share the story...I'm going to let it soak some more and repeat the cotton ball treatment. If the mark stays...any ideas?