You and me both Liz, love a good comet sighting. We'll keep our fingers crossed for another big one soon.
Thanks Dave. Its only had levels and curves and I didn't try too hard to get the red out of the tail. I quite like it like that. When I look at the histograms the colour comparison isn't too bad so I wonder if the red is actually there.
As to what I have unprocessed.

I'm sure there's a couple there for a rainy night if I need some
ps: Lappy is a Delld Inspiron. Meh Its ok, damn dust collector though.