Is it possible, and what would be simplest means to view sunspots at home? I figured some projection on the wall would be nice, but what you'd need to a get sharp image of say 2ft diameter?
Many good eyepieces have one or more cemented elements (usually two at a time) and I have seen four destroyed in just one day of showing the public some sunspots (not MY scope). In cheaper scopes, the eyepiece housings just simply melt.Originally posted by Phobos
any risk to the optics of the telescope?