HOW2 use old nautical almanacs without updating ?
 

I just read that..... Moitessier showed Gau how to use old nautical almanacs
without updating.

Anyone know the particulars and how satisfactory this is ?

Thank you,

Courtney

HOW2 use old nautical almanacs without updating ?
 

Courtney Thomas wrote:
I just read that..... Moitessier showed Gau how to use old nautical almanacs
without updating.

Anyone know the particulars and how satisfactory this is ?

Thank you,

Courtney

As I recall, the instructions for doing this are printed in the
almanac- you can use an old copy for sun/stars but not for planets/moon
sights.
Small boat sailors used sun sights most of the time, anyway.
I'm pretty sure that both Moitessier and Gau would have been happy to
read the lat/lon from the GPS screen.....

John

HOW2 use old nautical almanacs without updating ?
 

On 6 Aug 2006 09:50:24 -0700, "John" wrote:

As I recall, the instructions for doing this are printed in the
almanac- you can use an old copy for sun/stars but not for planets/moon
sights.

I may be wrong on this but seem to remember that the data for the sun
and stars comes close to repeating every 4 years.