Finally got a steady night to test my new toy, a NexStar 5i. And
tonight, I just got one of my best views ever of a tight double, Zeta
Cancer (actually a triple). The closest components as far as I know
have a separation of .92 arc-sec. At 250x they appeared as two disks
just touching (like the number 8), with nice concentric diffraction
rings, the atmosphere was very steady. The Dawes limit on my NexStar
5i is .91 arc-sec. So I think I should be pretty happy right? Would
you think this is average for a 5" SCT or did I just have a good night
of seeing or do you think I have a really good scope?
Dave