How to clean Eyepieces
Did you receive a telescope over the holidays? Great! We'll help you understand how to use it and point out some great things to look at.
Well, there is snow on the ground and the daytime temperatures will be hovering around freezing now. Night-time temperatures will be well below freezing, so winter is here.Here are some observing survival rules I have learned, observing from Michigan in temperatures down to 40C.