- J2000 - Static variable in class org.britastro.grelf.astro.Epoch
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- J2000 - Static variable in class org.britastro.grelf.astro.JulianDate
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Commonly used epoch for star charts, J2000.0, based on Julian years.
- JulianDate - Class in org.britastro.grelf.astro
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This class holds a Julian date/time to an accuracy of 1ms.
- JulianDate(double) - Constructor for class org.britastro.grelf.astro.JulianDate
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Construct from a numerical JD value.
- JulianDate(long) - Constructor for class org.britastro.grelf.astro.JulianDate
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Construct from the Java time in milliseconds since 1970.0 UT
- JulianDate(Calendar) - Constructor for class org.britastro.grelf.astro.JulianDate
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Construct from a Java calendar object (which already includes locale and time zone).
- JulianDate() - Constructor for class org.britastro.grelf.astro.JulianDate
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Get the JD now (system time) - uses default locale so no time zone conversion should be needed.
- JulianDate(String) - Constructor for class org.britastro.grelf.astro.JulianDate
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Construct from a xsd:DateTime value, as defined by W3C XML schema (eg, 2009-12-31T23:59:59.9+00:00).
- JulianDate(XMLGregorianCalendar) - Constructor for class org.britastro.grelf.astro.JulianDate
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Construct from standard Java representation of a W3C xs:dateTime.