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[vsnet-image 34] Delta Velorum secondary eclipse lightcurve.



Attached you'll find a lightcurve of the secondary minimum of delta Velorum
based on visual observations from LIADA (Jaime Garc$ByB(B, Sergio Dom$ByO(Bguez and
Sebasti$BaO(B Otero) and PEP(V) photometry from Brian Fraser (Astronomical
Society of South Africa).

From these observations we can now improve the numbers in IBVS #4999.

Min II is clearly brighter (V= 2.20 +- 0.02) than Min I (V= 2.32 +- 0.05).
The last two eclipses and Galileo's 1989 data are a good match with the
published period that can be actually just a little longer
(45.1502 days instead of 45.150). This will be known with future photometric
studies.


Best regards,
Sebasti$BaO(B Otero,
Buenos Aires,
Argentina.
LIADA (Liga Iberoamericana de Astronom$ByB(B)


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