Quote:
Originally Posted by gregbradley
Very good Bert. Its coming along nicely. That looks like a bit of tilt still as left side stars tend to elongated more than right side stars. A bit of packing needed there? Its probably also a very thin packer needed like .1mm.
Some of those narrowband backgrounds look black clipped giving a spotty look. Is that from processing or it needs longer exposure?
You are certainly picking up waves of Ha and other gases very well.
Greg.
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Greg. i do not need packing i just move the ITS on it's lateral dovetail. i need to move the current ITS setting a tad down and a tad to the left. As Mike said i could chase my own tail without an image to show for it!
I have now done a 64 minute exposure without any gross obvious movement.
here 6MB
http://d1355990.i49.quadrahosting.co..._64min_NII.jpg
This bit was easy as I had rotation with the SMC nearer the SCP. A careful T point realignment solved this.
It is difficult to optimise this system but the results are what make it worthwhile.
Bert