Geodesic circle

A geodesic circle is either "the locus on a surface at a constant geodesic distance from a fixed point" or a curve of constant geodesic curvature.[1] In contrast with the ordinary circle, the geodesic "circle" is not necessarily a plane curve.

References
  1. Whittemore, J. K. (1901). "A Note on Geodesic Circles". The Annals of Mathematics. 3 (1/4): 21. doi:10.2307/1967629. ISSN 0003-486X. JSTOR 1967629.
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