net.e175.klaus.solarpositioning

Class DeltaT

java.lang.Object

net.e175.klaus.solarpositioning.DeltaT

public final class DeltaT
extends Object

Finding values for Delta T, the difference between Terrestrial Time (TT) and Universal Time (UT1).

Method Summary

Modifier and Type	Method and Description
static double	estimate(GregorianCalendar forDate) Estimate Delta T for the given Calendar.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

estimate

public static double estimate(GregorianCalendar forDate)

Estimate Delta T for the given Calendar. This is based on Espenak and Meeus, "Five Millennium Canon of Solar Eclipses: -1999 to +3000" (NASA/TP-2006-214141).

Parameters:

forDate - date and time

Returns:

estimated delta T value (seconds)