HOW EPOCH SIGN IN CAN SAVE YOU TIME, STRESS, AND MONEY.

Epoch versus equinoxDate-references for coordinate systemsEpochs and durations of validityChanging the regular equinox and epochSpecifying an epoch or equinoxBesselian yearsJulian yrs and J2000Epoch of the daySee alsoReferencesNotesCitationsSourcesFurther readingExternal inbound linksThe most crucial use of astronomical portions laid out in using t