Quote:
Originally Posted by Dr Nick
Wow!
Nice! 
I have allways wanted to try this myself, how much magnification do you need for this one? |
Not much at all really Nick.
Good optics and good seeing can show quite a bit at relatively short focal lengths. This was taken at just 1140mm FL
http://www.pbase.com/strongmanmike20...04554/original
I think much longer focal lengths employing planetary imaging techniques is the way to go though.
Here is Eddie Trimachis incredible affort of the region from three years back with a C11 operating at 4800mm FL using lots of very short exposures (and some master processing):
http://astroshed.com/st10pics/keyhole.html#topofit
Mike