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Old 04-09-2018, 12:09 PM
SkyWatch (Dean)
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SkyWatch is offline
 
Join Date: Jan 2013
Location: Adelaide
Posts: 403
Hi Craig,

It might have just been a combination of bad seeing and a warm mirror. Did you allow an hour or so for cool-down?

If the mirror retaining screws are too tight you would normally see odd-shaped stars because of the pinching effect of the screws.

WRT the seeing: I have had nights when Saturn was just a blur even at 40x...

Good luck,

Dean
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