CAANutation_NutationInRightAscension: CAANutation_NutationInRightAscension

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

Description

CAANutation_NutationInRightAscension

Usage

CAANutation_NutationInRightAscension(Alpha, Delta, Obliquity, NutationInLongitude, NutationInObliquity)

Arguments

Alpha	Alpha The right ascension of the position in hour angles.
Delta	Delta The declination of the position in degrees.
Obliquity	Obliquity The obliquity of the Ecliptic in degrees.
NutationInLongitude	NutationInLongitude The nutation in longitude in arc seconds of a degree.
NutationInObliquity	NutationInObliquity The nutation in obliquity in arc seconds of a degree.

Value

The nutation in right ascension in arc seconds of a degree.

Author(s)

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

References

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

Examples

CAANutation_NutationInRightAscension(Alpha = 10.93, Delta = 11.34, Obliquity = 23.54343, NutationInLongitude = 0.231, NutationInObliquity = 0.004)

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