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I also showed a divergence of about 0.4' of arc in cleared lunar
distances with the predictions from Frank Reed's web site for a
different set of observations than Michael Dorl's Venus lunar.  Part of
that difference may be Frank correcting for the oblateness of the
earth, but that should only amount to 0.1' of arc according to Frank's
site.  I cleared my lunar distance using Young's method with altitudes
computed from the known time of the lunar observation, as laid out by
George Huxtable in his lunar series.

I still found Frank's site invaluable as I am having a problem with my
computation of the calculated lunar distance, the one people used to
obtain from the almanac.  The spreadsheet software I use for these
calculations has been updated and I fear some of my formulas have been
corrupted during the update.  I'm still tracking down this error.

I noted also that Frank's computed altitudes for the objects differed
from those given by the Naval Observatory site.

Fred

   

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