Saturn 20-04-2011 with a C11 at f/25 and a DMK21.
Saturn as seen on 10-04-2011 with the C11 of the astronomical society of Christiaan Huygens in Papendrecht, The Netherlands.
Saturn as seen on 10-04-2011 with the C11 of the astronomical society of Christiaan Huygens in Papendrecht, The Netherlands.