[AZ-Observing] Re: Delta Sco Fading

Good suggestion. I will try tau Sco tonight as the comparison star 
and see what happens.

Thanks.

Jeff

At 16:17 -0700 5/11/05, Brian Skiff wrote:
>      alpha-2 Librae, the brighter star, is one of the 108 primary UBV
>standard stars, for which the source paper (1954ApJ...120..196J) gives:
>V = 2.75, B-V = 0.15, U-B = 0.08.  SInce these data define the system,
>in principle you can't argue with them.
>      Seems like a star such as tau Sco might be a better match in color,
>in case there are color terms messing up the reductions.
>
>\Brian

-- 
Jeff Hopkins
HPO SOFT
Hopkins Phoenix Observatory
http://www.hposoft.com/Astro/astro.html

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