Sadly the pleiades never get very high from Australia but that excuse does't work on orion. There aren't any lights around me within 500metres that aren't blocked by trees but there is often both haze and fog in the early morning mainly. This was captured on the one clear night in a 2 week run of cloudy weather so there could have been residual cloud around that I didn't see with the naked eye. I used kappa-sigma clipping on DSS to remove satellite trails - would that remove stray clouds as well?
Should have said in the original post: processed in PIPP(the wrong use for this program but it's just so helpful), Registax 6, DeepSkyStacker and apple iPhoto.
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