Enter the desired final epoch in the lower portion of the dialog, then click the Calculate button to display the coordinates precessed to the final epoch.
在下面的窗口输入你想要的得到的标准历元，然后点击计算，这样就能够显示你想要得到的历元坐标。
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The current astrological age started when the equinox precessed into the constellation of Pisces, in about the year 150 BC, with the "age of Aquarius" starting in AD 2600.