One last crack at the Helix
Managed to get some more data on Helix on Tuesday night - 34 x 5 minute subs at ISO 1600. That is about the limit at my site without using some kind of LP filter. I have stretched it pretty hard and feel this is as far as my rudimentary skills can take it this time around.I will save up for a decent LP filter IDAS LP4 or something, or maybe Ha and OIII filters - who knows?
Now it's off to see what I can do with good old M42 to see how I have improved on my first astro efforts of a year ago. Feel free to advise and comment as always.
Bruce.
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