Re: NSV 10892 Photometry

[jg <jg@jgws.freeisp.co.uk>]

Dirk Terrell wrote:
> 
> On Sat, 24 Aug 2002 11:14:33 -0500, Michael Koppelman wrote:
> 
> >So a 1/4 magnitude difference in the minima is not enough of a
> >temperature difference to create a slight color difference that
> >might explain what we've observered?
> >
> 
> If the difference in minima is that large, then there could be some
> color change. But with a difference that large, I question the EW
> classification. What's the period of this thing?
> 
> Dirk

what quarter of a mag diff. at min?  this is not shown in
http://www.lolife.com/astronomy/gsc445-1993/fig2_all.jpg
which is a nice graph by the way.

There's 0.05 mag V diff in maxima, but that's the eponymous O'Connell
"effect" again.

Cheers

John G