Captured another Orion last night.
I added to it the data from the previous night and here's the result.
The fishing line had to come off the front of the ED80 so that I didn't end up with two sets of diffraction spikes.
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Exposure: 33 x 3 mins (over 2 nights) ISO 1600 (20 darks)
Camera: Canon 350D unmod
Scope: Orion 80ED (with crosshairs and UHC-S filter)
Mount: LXD-75 auto-guided
Guidescope: LXD-75 SN-8