CAAParallactic_ParallacticAngle: CAAParallactic_ParallacticAngle

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

Description

CAAParallactic_ParallacticAngle

Usage

CAAParallactic_ParallacticAngle(HourAngle, Latitude, delta)

Arguments

HourAngle	HourAngle The hour angle.
Latitude	Latitude The latitude of the position in degrees.
delta	Delta The declination in degrees.

Value

Returns the parallactic angle (the ZCN angle) and is generally designated by q.

Author(s)

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

References

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

Examples

CAAParallactic_ParallacticAngle(HourAngle = 11.3, Latitude = 122, delta = 15)

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