A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Tony Oz
Date: 2017 Jul 14, 09:03 -0700
Thank you for the comments.
1) I meant that Lat1 always goes to the A-register. Lon1 always goes to the B-register, Lat2 and Dec - whichever is relevant - go to the C-register, Lon2 and GHABody - whichever is relevant - go to the D-register;
2) my Casio has the tan button indeed (I'm used to the tg() since my school time);
3) by giving different names to the Lon-values I meant to stress that location #1 has Lat1, Lon1 and location #2 has Lat2, Lon2 - and should be handled properly. Location #1 is supposed to be observer's or the starting point, location #2 - is the destination;
4) me too, what is the proper name of the longitudinal difference between the two locations? I think it is not t (the hour angle), which can have either sign. I'd be glad to make the instruction most clear and understandable even for a novice.
I am limited with only 60mm width of the spot on the cover - hence the brevity of the cheat-sheet.