Dingle Astronomy

Rosette Nebula in Narrowband

Taken in November 2007
24 x 300 secs Ha/S11/O111 unbinned,  Average combined in MaximDL. Flats/darks/bias deducted.
Takahashi Epsilon 180 Astrograph telescope at prime focus F2.8
Starlight Express SXV-H16
Astrodon filters
Post processed by Peter Shah