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Starkler, your description of centreing (how do you spell that??) the primary on the reflection of the secondary is pretty much how I ended up doing it, followed up by matching the cheshire reflection with the centre spot. Other things I have looked at:
Stars - kind of a point but I'm guessing
Saturn - can see the rings but no Cassini division
Jupiter - can see the 2 main bands but no other detail
Eta Carinae - can see it but is very dull. My 20x binos show it quite bright and while 40x with the scope is 4 times reduced in brighness, I imagined that the light gathering would make it a bit brighter than it is - but of course it seems my expectations were excessive. But no, I realise it would never look like the magazine piccies.
Omega Centauri - quite a lot of resolved stars
Jewel Box - quite a lot of stars and can see the orage colour in one inside the triangle
Anyway, thanks for the input - I think I just need to lower the magnification of my expectations
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