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Another visit to the central part of IC1805, Melotte 15. This was my first ever Ha target last month. This time I have revisited in unbinned mode. I captured 21x600s frames until the object reached transit.
I quite amazed it turned out as well as it did - I am sure the recent rains have "washed the sky" leaving it very transparent. Also, guiding as being friendly and giving me 21 good frames with no discards. 3.5 hours total integration time.
I don't think it goes quite as deep as the 2x2 binned version - but that is to be expected. The image scale is perhaps a tad over the top for the tracking and seeing, but does give a nice big picture! Some interesting clouds creeping in on the right... perhaps a future target there.
Captured in ArtemisCapture, calibrated in ImagetoolsCa, DDP in maxim, thuggery in photoshop.
This image was autoguided using my 400mm focal length refractor and my black and white SC1 webcam.
Current Imaging equipment configuration
Exposure Details :
Coma Corrector Ha 21x600s on 200mm @ F5 with ART285
Curdridge Observatory, Southampton,UK