Orion's Lower Limb .

This six section mosaic was taken on 8 separate evenings . 

I was using an Atik 383L mono CCD camera piggybacked on my ten inch reflector with a 200mm lens and  Astronomik  narrowband filters attached to the front of the lens, HA , O111 and Blue, 

I captured five minute sub frames with matching dark frames and combined them with flat field frames to reduce the effect of noise and vignetting in the final image . 

The total exposure time for each section was 90 minutes using a HA filter , 15 minutes using an O111 filter and ten minute using a blue filter .

Click on an image to get a closer view

SH 2-276 Barnard's Loop.

This  three section mosaic image contains Barnard's Loop , NGC2024 the Flame Nebula  and Horsehead Nebula, IC434 . B33  and M78 .

I took these images on two separate evenings under bright moon light sky conditions with stars only visible down to magnitude 4.5. I was using a 200mm lens piggybacked on my ten inch reflector mounted on a VIxen Atlux mount.

I was also using PHD auto guiding, a set of Astronomik narrowband filters. A HA filter, an  O111  filter. and a blue with an Atik 383L mono CCD camera .

I captured five minute sub frames with matching dark frames and combined them with flat field frames to reduce the effect of noise and vignetting in the final image .

The total exposure time was 90 minutes using a HA filter  15 minutes using an O111 filter and 10 minutes using a blue filter.

Click on the image to get a closer view