Welcome Raul! Lots of wonderful sketches on your site, and I look forward to your posting here.
Welcome Raul! Lots of wonderful sketches on your site, and I look forward to your posting here.
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