[Aavso-photometry] GJ436 transit (maybe)

[Shawn Dvorak]

Shawn Dvorak wrote:
> It's not pretty, but if you squint and look at just the right angle 
> you might convince yourself that last night's exoplanet transit is 
> visible in my data.  According to Alert Notice 370 the transit was 
> predicted to occur between JD 54510.78 and 54510.82.  The 0.006 mag 
> dip in the 30-point moving average is actually fairly pronounced.  The 
> 0.005 mag rise at 54510.83 is a bit troubling, though.  The data 
> represents ~5 hours of 30s exposures through a V filter with an ST-9 
> on my LX200 0.25m scope.  An ensemble of the 10.6, 10.7, 11.4, and 
> 11.6 mag comparison stars was used.
>
> This data is probably about as good as I can get from my site.  Last 
> night was quite clear and cool after a cold front passed through - 
> about as close to photometric conditions as we get here at an 
> elevation of 75 meters.
>
> Shawn Dvorak (DKS)
> Clermont, FL
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Sorry... looks like mailman doesn't like attachments.  Here's a link to 
the graph:  http://www.rollinghillsobs.org/images/gj436.JPG.

Shawn