Barnard's loop

This image of Orion contains  lots of nebulousity, Barnard's loop. M42 the Orion nebula, The Horeshead Nebula,  The Flame Nebula ,M78 and the Rosette Nebula .

I piggybacked an Atik 383L mono CCD camera with a 35mm camera lens on my ten inch reflector mounted on a Vixen Atlux mount. I captured 60 second sub frames with matching dark frames to reduce the effect of noise in the final image  .

I also attached filters to the lens .

The total exposure time was 90 minutes using a H-Alpha filter, 120 minutes using a S11 filter, 30 minutes using an O111 filter, 25 minutes using a H-Beta filter and 35 minute using a blue filter .

The equipment

Orion nebulosity with Barnard's loop

VDB152 . or Barnard 175.

This cloud of nebulosity lies in the constellation of Cepheus the King. The sky conditions were very clear with no moonlight, stars were visible down to about magnitude 4.7. I was using my ten inch f/4.8 reflector, a Vixen Atlux mount, PHD auto guiding, a set of Astronomik narrowband and RGB filters and an Atik 383L mono CCD camera. I captured five minute sub frames, dark frames, flat field frames and dark flat frames with the camera set on X2 bin mode.

This increases the sensitivity of the camera, therefore reducing the total amount of exposure time.

The exposure time was 80 minutes using a blue filter, 30 minutes using an O111 filter and 150 minutes using a H-alpha filter .

A total exposure time of four hours and twenty minutes.

Barnard 175