Narrowband Imaging

NGC 2237 Rosette Nebula, H-alpha

NGC 2237 Rosette Nebula, Ha

Date: April 3, 2008

Telescope: Celestron 8 XLT f/2 on CGE mount

Camera: Starlight Xpress SXV-H9C

Exposure: 13 5-min subframes (65 min total) guided with Meade DSI pro and piggybacked Meade DSX-90 at f/13.8 using PHD Guiding.

Comments: HyperStar 3 lens, Astronomik 13nm Hydrogen alpha filter. Only red channel of the H9C camera used.

Astronomy and Birding Photography