SofaObl06 Method

Calculates the mean obliquity of the ecliptic for a given date using the IAU 2006 precession model.

Definition

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

C#

public static double Obl06(
	double date1,
	double date2
)

VB

Public Shared Function Obl06 ( 
	date1 As Double,
	date2 As Double
) As Double

Parameters

date1 Double: The first part of the Julian Date representing the date for which to compute the mean obliquity. Typically the larger (integral) part of the Julian Date.
date2 Double: The second part of the Julian Date representing the date for which to compute the mean obliquity. Typically the fractional part of the Julian Date.

Return Value

Double
The mean obliquity of the ecliptic, in radians, at the specified date according to the IAU 2006 precession model.

Remarks

This function is intended for high-precision astronomical calculations and is based on the IAU 2006 precession model. The date should be supplied as a two-part Julian Date to preserve precision, especially for dates far from the present epoch.

Version Information

.NET Standard

Supported in: 2.0