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N2207 @ 4metres..
Well...sort of...
I was setting up to image Mars on a couple of occasions last week.
First with a C11 & a few days later with a C14.
I wanted to have a go at NGC2207, but thought it a waste of time from the 'burbs of Melbourne.
Regardless, I took 8x600s images through the C11 at prime focus (pinpoint said 2940mm) on one night, and then 4x600s images through the C14 at a native 3900mm. All frames were just luminance. 2hrs total.
Needless to say, I got some fairly significant coma & even some field distortion over the frame through these scopes, but I dark subtracted all of the data & combined it.
Attached is the result cropped at 100% to show 2207.
I know its not all that deep & is in b/w, but it was an interesting exercise.
I was amazed that some of the frames came through with very low FWHM's at 1.6" or so..
Processing was just dark subtraction & histogram scaling; no sharpening. Tried my hand at a little field distortion correction too, but I don't think that it made too much difference.
Cheers
Maurice
QHY9 EQ8 C11 C14 OB luminance filter
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