Whirlpool Galaxy

m51_pr2_rs


Subject: M51 - Whirlpool Galaxy and NGC5195
Telescope: Celestron CPC 800 with f/6.3 reducer
Camera: Canon Rebel T1i
Technique: 50 approximately 30 second lights at 800 ISO. Total exposure time of 26 minutes 40 seconds. 8 darks. 50 biases.
Prime focus. Stacked with Deep Sky Stacker. Post-processing in Photoshop.

This is my third attempt at the Whirlpool Galaxy. For my previous attempt, the polar alignment and focus were so far off that I had to manually stack them. My first attempt was taken at a very high ISO resulting in too much noise and a loss of color. This new attempt is evidence to my progress.

Leave a reply

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

Current month ye@r day *