Narrowband Imaging
M57, Ring Nebula
Date: November 1, 2007
Telescope: NexStar 8 GPS f/1.8 Alt/Az mount
Camera: Meade DSI pro
Exposure: 56 15-sec subframes (14 min total) unguided.
Comments: HyperStar lens, Astronomik 13nm Hydrogen alpha filter.
All content Copyright ©2007 Gary Breneman
