This series of images stacked using the maximum setting on DSS was taken Thursday 11 Jan came out OK. I had to clones stamp out the Hot Pixels and as my set up is 480mm and 450D it is cropped to hell. The travel was bottom up on mine, most others I have seen are inverted.
The captures are 30 seconds with the missing bit being a meridian flip.
I have posted both the processed and the other with the hot pixels.