CAANutation_NutationInDeclination: CAANutation_NutationInDeclination

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

Description

CAANutation_NutationInDeclination

Usage

CAANutation_NutationInDeclination(Alpha, Obliquity, NutationInLongitude, NutationInObliquity)

Arguments

Alpha	Alpha The right ascension of the position in hour angles.
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 declination 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_NutationInDeclination(Alpha = 12.33, 
Obliquity = 23.4444, NutationInLongitude = 0.124, 
NutationInObliquity = 0.22)

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