Hi all
I was just wondering how you know when your telescope is properly focused? I know this is a silly question but last night when I was veiwing Venus with my 60mm appeture scope using a 25mm eyepiece, there was a line of light shooting off either side of the planet and I couldnt get rid of it without losing my clear image of Venus. Any help would be great thanks. I have a 60/700 scope.
