CAAIlluminatedFraction_PhaseAngle_2: CAAIlluminatedFraction_PhaseAngle_2

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

Description

CAAIlluminatedFraction_PhaseAngle_2

Usage

CAAIlluminatedFraction_PhaseAngle_2(R, R0, B, L, L0, Delta)

Arguments

R	R The planet's distance to the Sun in astronomical units.
R0	R0 The distance of the Sun from the Earth in astronomical units.
B	B The planet's heliocentric latitude in degrees.
L	L The planet's heliocentric longitude in degrees.
L0	L0 The heliocentric latitude of the Earth in degrees.
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_2(0.724604, 0.983824, -2.62070, 26.11428, 88.35704, 0.910947);

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