Thanks for your observations everyone, they will be helpful the next time I get a shot at the Cone.
Thanks for your observations everyone, they will be helpful the next time I get a shot at the Cone.
Howard
30-inch f/2.7 alt-az Newtonian
https://sites.google.com/site/howardbanichhomepage/
https://sites.google.com/site/sprays...pemirrors/home
Contributing Editor, Sky & Telescope magazine