Date: Thu, 16 Mar 2006 16:29:49 -0500
From: arne <arne
References: <4419B596.3030308

Ben Davies wrote:
> I'm interested in establishing magnitudes and colors of a set of stars 
> using the Stromgren system, so I need to locate uvby magnitudes for the 
> set of standard stars, such as are readily available for Landolt stars.
> Looking at the Crawford and Barnes photometry, I am confused by the fact 
> derivative?  Where are those passband magnitudes?  
> printed the paper out and read it, but remain unenlightened.
> 
> I located individual Stromgren stars in the Lausanne/Geneva photometric 
> catalog, but the V magnitudes given there look like Johnson magnitudes.  
> example at HD 210049 in uvby.
> 
> If someone could set me on the right path here, I would be much 
> appreciative!
> 
The person to talk to is Brian Skiff (Brian.Skiff
has probably done more uvby observing than the rest of us combined.
He has some "standards" listed on his ftp site, but I think he
has a better internal list.
Arne
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