Originally Posted by
akarsh
Dear Reiner
I was looking through the old OOTWs yesterday so I could pick up objects for my observing sessions (planned maybe for the weekend or some time during next week depending on sky conditions), and I came across your OOTW on Barnard's Nebula. It seems like it might be very very difficult with an 18", but maybe I'll have steady skies, who knows. What is the focal length of your telescope; you said you used a 6mm eyepiece, so I'm trying to estimate the magnification that you used.
Viele Grüße
Clear Skies
Akarsh