[AZ-Observing] Re: Copernicus in Good Light
- From: Tom Polakis <tpolakis@xxxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Mon, 14 Mar 2011 10:50:40 -0400
---- DBogan3220@xxxxxxx wrote:
> Seeing can sometimes be much improved with high thin clouds present. Some
> of my best visual impressions of Mars has been had this way.
I know you wrote "sometimes," but I'm going to have to go ahead and sort of
disagree you with there. All the planetary imaging I've done in the past few
years have made me something of a student of seeing conditions. My observation
has been that we often have good seeing in the hours before the arrival of
cirrus clouds, but the seeing is always unsteady once they are in front of your
target.
On the other hand, seeing can be very good when lower cumulus clouds are in the
area, as we see in Arizona during Summer. And seeing is often excellent on
foggy nights, but that's not something we get a lot of in the Southwest.
Tom
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