The Tangent Indicatrix of a Curve of Constant Precession is a spherical helix. The equation of a spherical helix on a Sphere with Radius making an Angle with the -axis is
(1) | |||
(2) | |||
(3) |
(4) | |||
(5) |
See also Helix, Loxodrome, Spherical Spiral
References
Scofield, P. D. ``Curves of Constant Precession.'' Amer. Math. Monthly 102, 531-537, 1995.