Re: NSV 10892 Photometry

[Tom Droege <tdroege2@earthlink.net>]

Tass takes simultaneous V, I measurements.  So tass data gives you at least 
a few points to answer this question.  Hopefully this is enough to 
calibrate the rest of the observations.

Tom Droege

At 12:26 PM 8/24/02 -0500, you wrote:
>One other question I have: if you take your V observation, then you switch 
>filters, re-focus and take your B observation, the star may have changed 
>by a substantial amount. It changes by 0.16 mag/hour between a given max 
>and min, or 0.03 mag in about 10 minutes. Can't that screw up B-V sorts of 
>measurements?