[AZ-Observing] Re: Mizar as spectroscopic binary

I noticed that the Western horizon last night was very obscured. I 
searched for Mercury, but when I happened across the Sun with my 
binoculars and it was still above the horizon and gave me less 
discomfort than looking at the Moon, I gave up. I do not recall 
seeing the extinction near the horizon that great before. Over head 
did not seem too bad, however.

Jeff

At 18:54 -0700 05/11/2008, Brian Skiff wrote:
>      Once a long time ago while showing visitors Mizar through
>the Lowell Clark, there was a guy who insisted that the view of
>Mizar AB was simply a slightly magnified view of Mizar + Alcor.
>No amount of explaining that the telescopic view was of just
>the one naked-eye component convinced him.
>
>      The comment, by the way, that the sky over the weekend was
>clear but very light-polluted was almost certainly caused by
>the second round of Asian dust we've been having since late last
>week.  Saturday and Sunday nights near Flagstaff were the worst;
>the sky from Anderson Mesa was awful:  hardly any Milky Way,
>stuff greatly obscured around the horizon, the Moon looking just dim.
>It's obviously present in southern Arizona, too, as one can see
>from the KPNO webcams:
>
>http://www.noao.edu/kpno/kpcam/
>
>...if you look at this before it's too long past sunset.  The KPNO
>view is somewhat compromised by a brush fire burning just south
>of the mountain over the weekend.  However, the strong uniformity
>of the lower-level crud shows it is well-mixed and comes from
>a long ways away.
>
>\Brian

-- 
Jeff Hopkins
HPO SOFT
Counting Photons
http://www.hposoft.com/Astro/astro.html
Hopkins Phoenix Observatory
7812 West Clayton Drive
Phoenix, Arizona 85033-2439 U.S.A.
(623)849-5889
(623) 247-1190 (Fax)
www.hposoft.com
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