Re: [APML] red and blue tails on stars?

[Joe Pedit <pedit@email.unc.edu>]

Matt BenDaniel wrote:
> 
> Can you see the same artifacts with a loupe on the slide?
> 

Glenn Ray wrote:
> 
> Any possibility that the slide was scanned "backwards"?  That is, I think
> slides are supposed to be scanned emulsion side down.  If not, I think
> you'll see reflections off the film.
> 


Matt and Glenn,

Thanks for the suggestions.  I examined the slide with a loupe and
projected it, but I was unable to tell if the artifact was on the slide
because of the slides darkness.  I scanned the slide with the emulsion
side up and down and the red and blue tails showed up on both scans. 
The other astro slides from the same roll showed the same problem.  I
scanned a negative and saw no evidence of blue and red tails on brighter
stars.

Joe

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