Narrowband Imaging



M57, Ring Nebula

 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.




Astronomy and Birding Photography