[Aavso-photometry] Possible new variable? (corrected)

Jeff Hopkins phxjeff at hposoft.com
Tue Dec 11 20:44:23 EST 2007


Hi Dave.

That's impress photometry.

How do you determine the SD?

Jeff

At 18:00 -0700 12/11/2007, Dave Lane wrote:
>Jeff Hopkins wrote:
>>  What I suggest is more observations and a period determination. If 
>>you can do that and predict the variations and the predictions 
>>prove out then you have found yourself a variable.
>And this is what I plan to do. Still struggling with how pessimistic 
>to be with the error bars - the ones plotted are 2 x the SD of the 
>(fainter) check star measurements (1 SD is 0.009 in B and 0.004 in 
>V).
>
>There has been enough discussion about error report on this list to 
>split a spectroscopic binary in a Tasco, but I haven't settled on a 
>recipe yet.
>
>... Dave

-- 
Jeff Hopkins
HPO SOFT
Counting Photons
http://www.hposoft.com/Astro/astro.html
Hopkins Phoenix Observatory
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Phoenix, Arizona 85033-2439 U.S.A.
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