Fantastic Dennis! For a 180mm aperture you've got monumental image scale on this one!! I remember imaging with my 200mm, anything around the 6000~7000mm focal length mark (F35~F38 or there abouts) was REALLY pushing it when it came to getting enough photon throughput..
Well done indeed.. and congratulations on getting some good seeing! however brief it may have been, I'm sure it was enjoyable!
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