CAAGlobe_DistanceBetweenPoints: CAAGlobe_DistanceBetweenPoints

In helixcn/skycalc: Computational Astronomy in R based on PJ Naughter's AA+ library

Description

CAAGlobe_DistanceBetweenPoints

Usage

CAAGlobe_DistanceBetweenPoints(GeographicalLatitude1, GeographicalLongitude1, GeographicalLatitude2, GeographicalLongitude2)

Arguments

GeographicalLatitude1	GeographicalLatitude1 The latitude of the position of the first point in degrees.
GeographicalLongitude1	GeographicalLongitude1 The latitude of the position of the first point in degrees.
GeographicalLatitude2	GeographicalLatitude2 The latitude of the position of the second point in degrees.
GeographicalLongitude2	GeographicalLongitude2 The latitude of the position of the first point in degrees.

Value

The shortest distance between two known points on the surface of the Earth expressed in kilometres.

Author(s)

C++ code by PJ Naughter, imported to R by Jinlong Zhang

References

Meeus, J. H. (1991). Astronomical algorithms. Willmann-Bell, Incorporated.

Examples

CAAGlobe_DistanceBetweenPoints(50, 0, 50, 60);
CAAGlobe_DistanceBetweenPoints(50, 0, 50, 1);

helixcn/skycalc documentation built on March 31, 2021, 5:45 a.m.