In spring it is known as the vernal equinox, and in fall the autumnal equinox.

天是，秋天是秋。

This year's equinox was on September 22nd.

今年的秋是9月22。

Very long and very severe were the equinoctial gales that year.

那年秋时的暴风，猛。

The harvest moon is the full moon that occurs closest to the autumnal equinox.

丰收月是最接近秋的满月。

The closest full moon to that was right at the beginning of October.

而最接近秋的满月正好是10月1。

In fact, the full moon nearest the autumnal equinox is commonly referred to as the harvest moon.

事实上，最接近秋的满月通常被称为收获的月亮。

Every spring and every fall, the calendar marks the equinox—and you may ask, what is an equinox?

每个季秋季，历上都会标明秋，你或许会问，什么是秋？

It was in the latter days of September, and the equinoctial gales had set in with exceptional violence.

那时正值九月下旬，秋时节的暴风雨猛烈异常。

Samhain marked the halfway point between the autumn equinox and the winter solstice, the beginning of the new year.

夏末节标志着秋冬至的中间点，也是新的一年的开始。

Equinoxes are directly related to the changing of the seasons.

秋跟季节变化有直接的关系。

Following the September equinox, the sun had emerged above the northerly horizon, rising in long spirals until December 21.

从九月中的秋起，它在北方天际出现，沿着长长的螺旋线上升，直到12月21。

Yesterday was officially the autumnal equinox in the northern hemisphere, and the vernal or Spring equinox in the southern one.

昨天是北半球的秋，南半球的。

It's time to say goodbye to summertime because today is officially the first day of fall, also called autumnal equinox.

到了夏季说再见的时候，因为秋季从今天正式开始，今天也被称为秋。

A harvest moon is a full, bright moon that appears " closest to the start of autumn, " NASA explains.

NASA解释说，获月是指“最接近秋”的满月。

Happening on September 22nd this year, the autumnal equinox marks the first day of fall for those living above the equator.

今年的9月22就是秋了，标志着赤道以北地区进入秋季。

The Aurora Borealis or Northern Lights are usually more active during the equinoxes according to a solar physicist interviewed by CNN.

一位接受CNN采访的太阳物理学家表示，在秋期间，北极光通常更加活跃。

In September there is what we call the " autumnal equinox."

九月是我们所说的“秋” 。

During the year, there is a spring equinox and the fall equinox.

的季节。 一年之中，有秋。

These are usually more active around the time of the equinoxes, according to a solar physicist interviewed by CNN, so consolation prize.

这些活动通常在或秋前后更为活跃，CNN采访的一位太阳物理学家表示，这是一种安慰奖。

Eventually people shifted the date from the September equinox to the 15th day of the 8th month on the Chinese lunar calendar.

最终，人们把祭祀期从秋时节改到了农历八月十五。