CAAIlluminatedFraction_PhaseAngle_1: CAAIlluminatedFraction_PhaseAngle_1

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

Description

CAAIlluminatedFraction_PhaseAngle_1

Usage

CAAIlluminatedFraction_PhaseAngle_1(r, R, Delta)

Arguments

r	r The planet's distance to the Sun in astronomical units.
R	R The distance of the Sun from the Earth in astronomical units.
Delta	Delta The planet's distance from the Earth in astronomical units.

Value

The phase angle in degrees.

Author(s)

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

References

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

Examples

CAAIlluminatedFraction_PhaseAngle_1(r = 12, R = 1.003, Delta = 12.5)

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