NGC 3521, Galaxy in Leo
NGC 3521, Galaxy in Leo 9.1 m, 11,7’X6,5′ Sketch with 406mm Newton, 154X April 7th, 2015 My first visual approach to this bright, but unknown galaxy. The secondary mirror shows after this winter some dark patches on his surface! I had to exchange it. Observer: Dr. Johannes Schilling, Lonsee