The Horsehead region of Orion

The Horsehead region . An Atik 383L mono CCD camera was used. The exposure times were six hours using an Astronomik H-Alpha filter and 30 minutes using green and blue filters, making a total exposure time of 7 hours. The telescope was an 80 mm f/7 refractor with a focal reducer and field-flattener making it f/6.3. I was using a Vixen Atlux mount with PHD auto-guiding. I captured 10 minute sub-frames with matching dark frames and combined them with flat field frames to reduce the effect of
vignetting in the final image.

A work in progress

Stars Eroded