Hi
This is another image I started just over a week ago as a try out to see how it went taking 30 minute sub frames. I managed to get 10x30 minutes of Ha last week and last night was clear apart from two 10 minute breaks for clouds. It was taken with a Takahashi FSQ106ED at f5 and Starlight Xpress H9 on a Paramount ME, auto guiding was by a Lodestar camera and OAG using dithering.
Exposures were
10x30 minutes Ha
4x30 minutes OIII
7x30 minutes SII
These were then mapped to the HST palette. Using 30 minute sub frames does make the processing a lot easier as less usage of levels and curves are required to bring out the detail
The Ha version of this and earlier attempts at this object can be seen in the image gallery on my website
http://www.imagingtheheavens.co.uk
and a full size high resolution version can be seen at the following link
http://www.pbase.com/imaging_the_hea...13458/original
Thanks for looking
Best wishes and clear skies
Gordon