[vsnet-campaign-deltavel 15] Re: Slightly shorter period?

[Lew Cook <lcoo@yahoo.com>]

--- Sebasti疣_Otero <varsao@fullzero.com.ar> wrote:
(snip)
If I take the three more recent primary eclipses (1999-2000), the
period seems to be 45.15667 days. But it doesn't fit with Albert's
1989 photo= 0.5 day difference...

A 0.5 day error may often occur in converting from UT to JD, so don't
overlook the possibility that the 0.5 day correction was missed.
Verify the time of day the observation was made to be sure it was
dark then. It is a simple and common mistake. I've done it before.

=====
Regards, Lew 
FYI - I use AIP4WIN photometry software - it
accompanies R. Berry and J. Burnell's new book:
Astronomical Image Processing
http://vsnet.willbell.com/aip/index.htm
Remounting the 0.74m Reflector:
http://vsnet.lewcook.com/eng29.htm

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