CAASun_EquatorialRectangularCoordinatesAnyEquinox: CAASun_EquatorialRectangularCoordinatesAnyEquinox

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

Description

CAASun_EquatorialRectangularCoordinatesAnyEquinox

Usage

CAASun_EquatorialRectangularCoordinatesAnyEquinox(JD, JDEquinox)

Arguments

JD	The date in Dynamical time to calculate for.
JDEquinox	The Julian day for which equatorial coordinates should be calculated for.

Value

A class containing the equatorial 3D rectangular coordinates in astronomical units referred to the specified equinox defined in the FK5 theory.

Author(s)

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

References

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

Examples

CAASun_EquatorialRectangularCoordinatesAnyEquinox(JD =  2456597.5, JDEquinox = 2000.0)

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