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[vsnet-chat 3723] New data and saturday's observations



Dear friends:
                       Last saturday bad weather conditions prevented a reliable confirmation of the eclipse of delta Velorum. But according to Danie Overbeek in South Africa, no eclipse was seen between 2451832.5486  and 2451832.6250.
                      From Uruguay, holes in the clouds let Raúl Salvo (LIADA)  try some estimates. He seems to have noticed a dimming between  2451832.7251 and 2451832.8333. 
                      This all just mean that we are at the same point as last week: needing more observations.
 
Paul D Fieseler, Sequence Integration Engineer of the Galileo Mission, Jet Propulsion Laboratory, NASA, informed that another fading was recorded by Galileo's star scanner in 1989 (JD 2447850.3 - 2447851.0)
 
This fading doesn't fit with the ephemeris unless the period is decreasing at a fast rate: 0.001425 days a year (according Paul Fieseler).
However this trend seems not to be present in the last eclipses.
 
The 67.7 and 5.89 day periods will join in November 2nd offering a great chance of catching something.
 
Next event - according the 5.88877 day period will occur next friday night between 22.30 and 06.30 UT.
Perfect for South African people.
 
Best regards,
Sebastian Otero.
 

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