Hi
This is a bit of a short overall exposure time of just over 3 hours total (normally I do more than that for each filter!). I have a very small window in which to get any imaging time on this subject due to my house blocking the east sky and then the roof of my shed almost blocking the guiding scope and then finally my neighbours tree puts an end to any more imaging for M42. I am able to get 1 to 2 hours on this in an evening depending on the time of year. I managed to get just over 3 hours total in three nights and despite the overall short integration time I'm quite happy with the results. I will have another go later in the year when it comes round again but this will have to do for now. It is 12x5 minutes Ha, 14x5 minutes OIII and 12x5 minutes SII mapped to the HST palette. It was taken with the Televue NP127is/FLI imaging system that I'm currently testing. Guiding was taken care of by an Offcine Stellare Falco guide scope and Starlight Xpress Lodestar. Interestingly, my guide star went oblong in shape part way through the session as it was skimming the roof of my shed but this didn't seem to affect the guiding. This is the first time I have attempted this subject in full colour.
A full size image can be found at the following link
http://m9.i.pbase.com/o9/29/869929/1....M42HSTmax.jpg
Thanks for looking
Best wishes
Gordon
