NavList:

   

Reply

Hi Frank,


> Save yourself a ton of time! Since 2004, the lunar distance calculator on my
> web site has provided modern accuracy lunar distance tables for those early
> years with the option to select GAT (Greenwich APPARENT Time) as the
> independent variable.

Thanks---I've done a few spot checks, and there seems to be agreement
to a couple of arcseconds.  The web calculators are nice for small
numbers of observations, but for reducing them en masse I think it's
good to have a self-contained option.

I guess disparities this small are probably not worth worrying about
for the purpose of looking at historical almanac error, which by all
accounts was still ~10 arcsec at the end of the lunars era.

Cheers,
Peter

   

Reply