[AZ-Observing] Re: FWHM measurements for Phoenix skies, anyone?
- From: Bob Erdmann <bobe@xxxxxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Tue, 22 May 2007 15:49:00 -0700
A lot of the Solar System objects are indeed best seen when the
background is not "inky" black. Some of the best views of Saturn I have
had have been during twilight, or from my Tempe backyard, and not during
the dead of night at a "really dark site", so I can indeed understand
Pierre's comment. I seems to be related to contrast ratio, and getting
just the right ratio for the object under observation which means having
a light polluted background for some objects.
/Bob
Paul Lind wrote:
> Matt,
>
> Pierre often said that the seeing at his house was at least as good, and
> generally better than at our remote sites. He was speaking of solar system
> objects, I think. Maybe he lived in a "great
> seeing island," or perhaps the seeing situation slowly degraded in the city.
>
> Paul
>
>
>
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