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[vsnet-chat 2694] Re: OY Car eclipse ephemeris

Re: OY Car eclipse ephemeris

> I've just been reducing a run on this star. In doing so I noticed that your
> eclipse ephemeris gives heliocentric times, not geocentric. I obtained
> times of eclipses in JD (no HC applied) 599.87479, 599.93818, 600.00138.

   The times were geocentric.  The difference was simply caused by the
different ephemeris.  The elements I used were

   Min HJD = 2443993.55369 + 0.0631209295 E

   Eclipses are prediced ~90 sec later than on the other elements (used
in GCVS?)

   Min.HJD = 2443993.553241 + 0.0631209247 E

Regards,
Taichi Kato

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