If I were to write an almanac for the WP-34S (similar to the HP-41 Navigation Module) would you suggest
Bowditch? The HP-41 Navigation Module is great and I'm fine with some error to save memory as it's just for fun.
Thanks,
Nick
Edit: Added hyperlink for those not familiar.
Hello!
(08-29-2016 07:47 AM)Nick Wrote: [ -> ]... I'm fine with some error ...
I would estimate that the error you make when you take your sightings - I am told that a very well trained observer can use a sextant with an accuracy of about 1/2 arc minute - far outweighs the error which is introduced by simplified almanac data. Therefore I would go for the version which is easiest to get into the calculator.
Regards
Max
The best book you can use on the matter is Astronomical Algorithms written by Jean Meeus.
For Great Circle and Rhumb Line runs, as well as Nautical Tables you can't go wrong with the Bowditch.
For the analytical solution of intercepts into a geographic position, read the following link:
http://astro.physics.uiowa.edu/~rlm/math...001418.pdf
Have fun!