It looks quite faint, I suppose you could stretch the levels by moving the white point. It would most likely highlight the noise and tracking inaccuracies, but you will at least see more "data" as well.
Is that a raw stacked shot or is it already processed?
yes mike it is an unprocessed stack of 30 images @ 30secs a piece , i think i may need to expose for longer as i was unimpressed with the lack of detail