Hi,
Just trying to compute the contact times for the
upcoming total solar eclipse. Guide seems to
predict Delta_T (TD-UT) by an internal formula.
Now Delta_T (TD-UT) changes with time in an un-
predictable way, and current values are a bit
lagging
behind those used in Guide. Normally, the
difference
is not very high and won't very much affect the
accuracy of the eclipse trails plotted by Guide.
They will however shift local contact times a
little.
Is there any way to manually enter a value for
Delta_T (TD-UT) in Guide ?

Hartwig