Permalink Submitted by Örjan Sandström on November 19, 2016

Actually haversine in navigation is still evolving.
Hanno Ix and Greg Rudzinski reworked an old method of celestial navigation (Doniol) to get a very compact system with few sources of error, it utilizes ONLY haversines to solve the pzx triangle for both computed height
-almost same as great circle distance for stars if you disregard atmospheric refraction, oblatenes of earth and other real world inconveniences-

and azimuth to the projectionbject altitude With only addition, subtraction and one division.
This acievement does not sound like much, but for a lightly seasick sleepdeprived person in the cramped and frequently badly iluminated confines of a small craft it reduces error sources...

## haversine

Actually haversine in navigation is still evolving.

Hanno Ix and Greg Rudzinski reworked an old method of celestial navigation (Doniol) to get a very compact system with few sources of error, it utilizes ONLY haversines to solve the pzx triangle for both computed height

-almost same as great circle distance for stars if you disregard atmospheric refraction, oblatenes of earth and other real world inconveniences-

and azimuth to the projectionbject altitude With only addition, subtraction and one division.

This acievement does not sound like much, but for a lightly seasick sleepdeprived person in the cramped and frequently badly iluminated confines of a small craft it reduces error sources...