This image shows the ring nebula together with its very faint halo as imaged by 11″, 12″ and 17″ reflectors. Credit: André van der Hoeven, Terry Hancock, Fred Herrmann, Mike van den Berg and Mathijn Ippel Like other old red giants M57, better known as the Ring nebula, has expelled most of its material in …
In 2011 I started with imaging M57 with my C11 and a 12nm H-alpha filter. I then caught the first glimpse of the outer halo of M57. The ring nebula, as Messier 57 is better known, consists of three structures, the inner, bright and most familiar, nebula, which is about 86″ by 62″. This is …
Here is some lunar imagery I took on the early morning of June 1st 2013 using a C11 at f/10. Seeing was very stable showing some really small details. Lunar domes near Copernicus Kepler crater Clavius and its surroundings Sinis Iridum with its many small craterlets