Messier 56 globular cluster in Lyra taken July 30, 2011 from home with 130mm Astro-Physics refractor and Canon 7D camera, for stack of 5 x 5 minute exposures at ISO 1600 and f/6.
M57 Ring Nebula, taken Oct 6, 2007 with 5-inch Astro-Physics apo refractor at f/6 with Canon 20Da camera at ISO 400 for stack of 4 x 15 minute exposures. Guided with Meade DSI/66mm guisdescope and PHDGuide sofware. Some misguiding in Dec. No field flattener on 5in scope.
The Ring Nebula, Messier 57, in Lyra, the classic planetary nebula, here in a wide shot showing it in context in the rich starfield between the bottom two stars of Lyra: Sulafat (Gamma Lyrae) at lower left and Sheliak (Beta Lyrae) at upper right. North is up in this field. This is a stack of 6 x 8-minute exposures with Astro-Physics 130mm apo refractor at f/6 (with the 6x7 field flattener) and Canon EOS Ra camera at ISO 800.
