NovasFundArgs Method
To compute the fundamental arguments (mean elements) of the Sun and Moon.
Namespace: ASCOM.Tools.Novas31Assembly: ASCOM.AstrometryTools (in ASCOM.AstrometryTools.dll) Version: 3.0.0-rc.1+86c25ce733aebb4d8b1b8a62e84770ea5e972bea
public static void FundArgs(
double t,
ref double[] a
)
Public Shared Sub FundArgs (
t As Double,
ByRef a As Double()
)
Parameters
- t Double
- TDB time in Julian centuries since J2000.0
- a Double
- Double array of fundamental arguments
Fundamental arguments, in radians:
a[0] = l (mean anomaly of the Moon)
a[1] = l' (mean anomaly of the Sun)
a[2] = F (mean argument of the latitude of the Moon)
a[3] = D (mean elongation of the Moon from the Sun)
a[4] = a[4] (mean longitude of the Moon's ascending node);
from Simon section 3.4(b.3),
precession = 5028.8200 arcsec/cy)
Supported in: 2.0