Quote:
Originally Posted by strongmanmike
This is pretty good Paul with excellent details identifiable when compared to the Hubble shot. It sounds to me like you have the basic technique down but by the look of those elongated stars you just perhaps need something that will align the frames slightly better..?
This was my effort a year ago using a normal CCD and stacking short single frame exposures (1s, 5s & 20s) with HaOIIISII filters at my native prime focus of 1120mm FL.
Mike |
Thanks Mike. Those elongated stars didn't look as bad before processing - the wavelets have done them no favours. But I think the bias in that direction may be more movement during tracking than poor alignment. It is a big cheap dob, and so the tracking is a bit cheap and cheerful! I'll see if I can improve the stacking though.
I like your version. Nice to get that background nebulosity too. There's a faint hint of the red from the Hubble image in the tiff version of mine if you stretch it a bit and use some generous imagination
Paul