It does not always occur on the same date as the astronomical full moon.

由于天文满月，复活节的日期不会是每年的同一天。

youdao

In time and date and linear sequence, the vortices would then not exist in the same vector, or in the same specific astronomical gravity fields, and you would not then gain the benefits.

在时间、日期和线性序列之中，漩涡不会在同一个向量或相同的天文重力场中存在，你们也因此不会得到任何益处。

youdao

Note that these dates are based on astronomical calculations to affirm each date, and not on the actual sighting of the moon with the naked eyes.

但要注意的是，这些日期是基于对天文计算，而不是根据肉眼所看到的新月的日期。

youdao

It is celebrated on 21 March every year, a date originally determined by astronomical calculations.

UNESCO: Culture

As of this date, it appears my client will never see his original investment even, much less the astronomical gains he supposedly earned.

FORBES: Anatomy of (Yet Another) Hedge Fund Fraud (June 1, 2001)