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Thanks for the feedback.
Well my friends telescope as said is a standard 10" SAXON as posted above.
He asked me 'How do you even know what quality mirror you have?'
So based on his telescope, can someone give me the 'most powerful' (useful) magnification? he said at 250x mars is a red dot. So what must mars be at to actually 'see' it, 500? And would 500 even be any good on the scope he has (given whatever mirror it has which im sure you would know more than me)?
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