Sunday 8 December 2013

The Cygnus loop

The Cygnus loop mosaic. This mosaic is a composition of two images stitched together using Paint Shop Pro.The eastern section (NGC 6992) has been included. Ten minute sub frames were used with matching dark frames, making total exposure times of 60 minutes using an Olll filter, 60 minutes using a H-alpha filter and ten minutes using each colour filter. An 80mm refractor was used with PHD auto guiding, with an Atik 383L mono CCD camera.

The Cygnus Loop

Labelled image

NGC6960

NGC6960 The Veil Nebula. This Image was taken under clear mooless sky conditions with only light pollution to contend with. A f/7, 80mm refractor was used, with PHD auto guiding and an Atik 383L monochrome CCD camera. Ten minute sub frames were captured with matching dark frames and then stacked them using Deep Sky Stacker. The exposure times were 120 minutes using a H-alpha filter, 80 minutes using an Olll filter. These narrowband exposures were used for the image luminance were as the RGB filters were used for the colour data. The exposure times were 20 minutes for each colour filter making a total exposure time of four hours and twenty minutes.
Narrowband image

Bi-colour image

Combined images