On Sun, Nov 2, 2008 at 4:49 AM, Hal Murray <[EMAIL PROTECTED]> wrote:
> > Don't forget too, that solar noon varies quite a bit (minutes) from > > "mean solar time" over the year. If you're navigating your ship with > > noon sun sights, this is pretty important. > > What do I google for if I want that correction? > Equation of Time. http://en.wikipedia.org/wiki/Equation_of_time > There are quite a few time scales. Which one do navigators use? > Whichever were used in the almanac they are using. That is the point of the almanacs and compilations of tables, to have "reference frames" in which (nearly) pre-computed solutions are listed. -- Sanjeev Gupta +65 98551208 _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
