A continuation of the story
Last night, after a really hot day, the ground level wind was zero but the seeing was not good. Could barely make out the Cassini Division at 133x as the image went in and out of focus on a regular basis. Understandable after the day we just had. So what to do? Take my own advice and look at low power objects like star clusters and nebulae - great.
Looked up Jupiter in Aussie Sky and Telescope and found the GRS transition time was 0541 this morning and from Astronomy 2005 Mars would be up so an early morning was called for and surely the atmosphere would have settled own by then. Left the scope on the back deck so it would be at ambient temperature, all systems go!! Up and ready, stuck my head out and.... light cloud
A weak southerly had moved in and dropped the temperature so it was more pleasant but cloudy!! Anyway there were enough holes to have a go, Mars was a write off as the cloud to the east was quite dense but, to the north Jupiter was up in all its glory. Very average seeing, could make out the cloud bands and GRS with a 80A filter but that was all.
Why?? The cold front puts a wedge of cool air under a layer of warmer air and increases turbulence reducing the seeing. Generally the seeing is better in the morning as I had hoped but weather changes consire against us.
Take a philisophical approach, if the seeing was perfect all the time what thrill would there be when you finally grabbed that window, it would be there all the time.
Oh well, will have to try again.
Cheers