A [[rhumb line]] (also known as a loxodrome or "spherical spiral") is the curve on a sphere traced by a ship with constant [[bearing (navigation)|bearing]] (e.g., travelling from one [[Geographical pole|pole]] to the other while keeping a fixed [[angle]] with respect to the [[Meridian (geography)|meridians]]). The loxodrome has an [[Infinity|infinite]] number of [[Orbital revolution|revolution]]s, with the separation between them decreasing as the curve approaches either of the poles, unlike an [[Archimedean spiral]] which maintains uniform line-spacing regardless of radius.
