Re: GSC 540-84

["Shawn Dvorak \(Rolling Hills Obs\)" <rollinghillsobs@cfl.rr.com>]

Michael,

That's one odd lc!

Tonight's forecast looks mildly promising, at least after midnight when the
thunderstorms die down.  If it's clear I'll make a run in V.

Shawn


----- Original Message -----
From: "Michael Koppelman" <lolife@bitstream.net>
To: "Tass" <tass@listserv.wwa.com>
Sent: Tuesday, July 29, 2003 10:07 PM
Subject: Re: GSC 540-84


> Got one more long night on this one. I've made a web page for it here:
>
> http://www.lolife.com/astronomy/gsc540-84/
>
>
> I tried phasing the data with Patrick's period:
>
> http://www.lolife.com/astronomy/gsc540-84/gsc540-84_phase.jpg
>
> It looks a bit odd. My comp star 1-sigma was less than 0.01 so even if
> you double it, that 0.05 mag difference at phase 0 is outside the error
> bars. We don't know if the period is right and I'm sure there are
> factors (e.g. color/airmass) that could account for the difference.
> When you double the period it still seems possible but that light curve
> shape doesn't really scream EB at me.
>
> This is Rc data. Can someone grab some V data for us? Otherwise after a
> few more nights in Rc I'll switch to V.
>
> I'll add some of this to the wiki page for this star.
>
> Cheers,
> Michael Koppelman
>
>
>