SofaHd2pa Method

Hour angle and declination to parallactic angle.

Definition

Namespace: ASCOM.Tools
Assembly: ASCOM.AstrometryTools (in ASCOM.AstrometryTools.dll) Version: 3.0.0-rc.1+86c25ce733aebb4d8b1b8a62e84770ea5e972bea

C#

public static double Hd2pa(
	double ha,
	double dec,
	double phi
)

VB

Public Shared Function Hd2pa ( 
	ha As Double,
	dec As Double,
	phi As Double
) As Double

Parameters

ha Double: Hour angle (radians).
dec Double: Declination (radians).
phi Double: Observer geodetic latitude (radians).

Return Value

Double
Parallactic angle (radians).

Version Information

.NET Standard

Supported in: 2.0