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Hello friends,
Good news!
I'm crazy to observe this star after these ephemeris... Bad
weather at night in Floripa yet...
[]s do Alex!
--- Sebastian Otero <varsao@fullzero.com.ar> escreveu: >
> > I looked back through my files
> > and discovered that I had found a quite believable period of
> 1.87213(5)
> > days in 1998. Using that ephemeris as a starting point I have
> incorporated
> > the photometry published in the recent postings to come up with
> this...
> >
> > HJD_minI = 2448725.728 + 1.872210xE
>
> Chris,
>
> I used your period and form the resulting graph I was suspicious
> from the
> lack of secondary eclipse.
> So doubling the period ended up with the best lightcurve.
> I applied heliocentric correction to my observations and finally
> found:
>
> I = HJD 2448725.720 + 3.744399 x E
>
> See my webpage at:
> http://ar.geocities.com/varsao/Curva_FU_Eridani.htm
>
> I smoothed AAX observations to fit them in the graphs as follows:
>
> JD2440000+ corrected V mag. visual AAX
>
> 12292.6014 9.28 9.0
> 12309.5146 9.26 8.9
> 12396.5778 9.26 8.9
> 12317.5396 9.25 8.8
> 12475.7785 9.60 9.3 No eclipse
> 12475.8257 9.28 9.0
> 12490.7375 9.40 9.2 Eclipse
> 12496.8507 9.33 9.1
> 12497.6674 9.28 9.0
> 12521.5917 9.26 8.9
> 12525.6799 9.28 9.0
> 12525.7785 9.33 9.1
> 12549.6389 9.26 8.9
> 12550.5458 9.33 9.1
> 12560.6910 9.26 8.9
>
> See that Alexandre caught the secondary eclipse (also observed by
> Hipparcos)
> but the 9.3 observation (=9.60) is a mistake.
=====
********* Alexandre Amorim ***********
* Estacao Costeira1 *
* Florianopolis/SC *
* email: costeira1@yahoo.com *
* http://vsnet.geocities.com/costeira1 *
**************************************
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