Posted by Paul A Brierley at 06:55 on 2011 Jul 08
Sorry to be a pain, but can you recommend an easy variable, to begin with. I use a 25cm f4.8 Newtonian but I also have 10×50 glasses and a WO 66mm f5.6.I would love to know. How does one go about estimating the brightness, of a variable star? Thank you for any help you can give me.