Clavius, Longomontanus, Tycho (Day 10 Moon)
Clavius: many sub-craters – the whole basin is about the size of Northern Ireland!
Smallest sub-crater is about 4 miles across.
Above and to left:
Longomontanus: nicely terraced crater
Tycho: Classic complex crater with terraces and central peak, about 86km across.
Celestron Nexstar 8SE SCT (2000mm focal length, f/10)
Ioptron ZEQ25GT mount
PGR Grasshopper 3 CCD camera with red 2c filter
Best 10% of a 3000 frame video at 20 frames/s
Have now solved some technical problems – can do 3000 frame video (about 10 gig) on external hard drive after changing how drive is formatted.
Have moved away from using linked wavelets in Registax 6 which gives much more flexibility in terms of sharpening an image – more to work with before it looks over-sharpened.
Next stage – try a 1.6 x Barlow magnifying lens – that should bring the focal length up to about 3200mm!