Quote:
Originally Posted by Merlin66
The average seeing conditions I got in Melbourne (15Km from CBD) was always around 2.5 to 3 arc sec.
Such is life.
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The best I have ever measured in Melbourne is 2.2 arc seconds.
Many nights it's as bad as 6 or more arc seconds.
If the stars are twinkling - I don't set up my telescope equipment.
It can also change drastically over the night -
it can start off at 4 arc seconds at 9pm & be down to 2.5 arc seconds by 1 am.
Often it's the best at about 1 to 4 am in the morning.
cheers
Allan