[AZ-Observing] Re: Blue Hills and Cherry Rd.

A good contrast effect at the Grand Canyon, Jupiter never looked any
good, being low in the west and over the canyon's rising hot air at
sunset. Mars however from about 2 AM on was steady, as we were looking
SE over pine forests.

Jack Jones
Saguaro Astronomy Club
Public Events
Phoenix AZ
spicastar@xxxxxxxxxxxxxxx

> Mars was a disappointment. At 1:30 it looked like it was
> being viewed through rippling running water. The large size of the
> turbulence cells and the direction from the horizon to the zenith (or
> thereabouts) makes me think it might have been caused by observatory
> cooling. Normally, there is always a slight breeze. Last night it was
> dead calm for awhile. I was observing Mars over the landing, which is
> not that massive (made of steel with wood planks), and a very-very
small
> section of the roof. Could it be the stillness of the night made the
> thermals from cooling more obvious than normal?  I would have thought
by
> 1:30 am this would not have been a problem


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