Re: GSC 00279 00321

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

These nearly one day period ones, whether one day is a multiple of the
true period or the exact period or the half period, are going to be
tricky without full lightcurves, and unfortunately, if a star is being
followed up near the end of the season, a full lightcurve is not going
to be possible, because you're always going to be looking at the same
bit of lightcurve every night for the short period of time on an evening
when you can observer it before it disappears for up to six month (by
which time the bit of light curve being sampled should have progressed
along a bit).



Cheers

John G


Dirk Terrell wrote:

> >I don't now how to tell what kind of variable star this is. It's very short
> >period excludes many types but I don't know enough to make a theory as to
> >what type it is. That is why I do not address that in the paper.
> >
> 
> I just got around to looking at your plots. In your IBVS note, Figure 2
> sure makes it look like an eclipsing binary. Have you looked at periods
> around two days? You might have a case where the orbit is eccentric and
> is oriented such that the nearly equal-depth eclipses aren't equally
> spaced in which case it can be tricky to get the period right when you
> only have a few observations. See IBVS 4168 and 4544
> 
> http://www.konkoly.hu/cgi-bin/IBVS?4168
> 
> http://www.konkoly.hu/cgi-bin/IBVS?4544
> 
> My bet is that it's an EB with a one or two day period
> 
> Dirk