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[vsnet-ecl 916] FU Eri's period is NOT 3.7444 days

Date: Thu, 6 Mar 2003 15:12:39 +0000 (GMT)
To: Sebastian Otero <varsao@fullzero.com.ar>
From: Chris Lloyd <cl@ast.star.rl.ac.uk>
Subject: [vsnet-ecl 916] FU Eri's period is NOT 3.7444 days
Cc: VSNet-ecl <vsnet-ecl@kusastro.kyoto-u.ac.jp>, <Anton_Paschke@swissre.com>, Alexandre Amorim <costeira1@yahoo.com>
Delivered-To: vsnet-ecl@kusastro.kyoto-u.ac.jp
In-Reply-To: <002201c2e3ac$4b069d80$eafc2bc8@varsao>
Sender: owner-vsnet-ecl@ooruri.kusastro.kyoto-u.ac.jp

Sebastian,

Looking at the ASAS data the period is half of what you suggest. There is
a clear indication of a weak secondary eclipse at phase 0.5 and there's
even a suggestion of it in the Hipparcos data. From the combined
Hipparcos, ASAS and visual minima I get a new ephemeris of

HJD_minI = 2448725.726 + 1.872206xE

which is practically identical to the previous one.

Cheers,

Chris

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