Why does the equinox occur?

There are two. The spring equinox is on about March 21st. The fall equinox is about Sept. 21st

The autumnal equinox occurs in September.

An equinox occurs two times a year.

In the Northern Hemisphere, the vernal equinox is the March equinox, which is the autumnal equinox in the southern hemisphere. (March 20) In the Southern Hemisphere, the vernal (spring) equinox is the September equinox, which is the autumnal equinox in the northern hemisphere (Sept 22 or 23).

An Equinox occurs when neither end of the Earth's axis is tilted toward or away from the sun.

The September equinox can occur at any time from the 21st to the 24th of September.

The equinox is on the day in spring and fall when the length of the day and length of the night are equal. the word 'equinox' literally means 'equal night'.

A solstice. A solstice occurs in June and in December. An equinox occurs in March and September.

liedlihqwlkhdaLDHLISHLSAD'S Equinoxes occur four times a year. The Vernal Equinox occurs in March, the Summer Solstice occurs in June, the Autumn Equinox occurs in September, and the Winter Solstice occurs in December.

March and September.

Because it is south of the equator

The "Vernal Equinox" is the beginning of "Spring" and the end of "Winter". The Autumnal Equinox is the beginning of "Autumn" or "Fall" and the end of "Summer". In the Northern Hemisphere, the Vernal Equinox is in March and the Autumnal Equinox in September each year.

There is an equinox in the spring called the vernal equinox, and one in the fall called the autumnal equinox. They happen at the moment that the center of the sun is in the earth's equatorial plane. In other words, they occur at the moments when the sun passes directly over the equator.

The next Southern Equinox will occur on September 22, 2013. Sadly, you just missed the March Equinox by a few weeks, but luckily you will only have to wait 5 months to see the next one. The Northern Equinox happens every year around the end of March, while the Southern Equinox happens every year around the end of September.

September,because it is south of the equator

The March 20th Spring equinox is the Vernal Equinox; when six months later we see the October 21st Autumnal Equinox. As well, Two Solstices occur, one each at Summer and at Winter.

In all parts of the world, in December and July occur soltices and in march and September, equinoxes.

The conditions on Earth for the equinox to occur must include the following: when the tilt of the Earth's axis is neither pointed towards the Sun or away from the Sun, and the center of the Sun lines up exactly with the Earth's equator.

The spring Equinox occurs on April 21 st. The fall Equinox is on September 21 st. The summer Solstice occurs on June 21 st and the winter Solstice occurs on December 21 st.

The exact time of the vernal equinox varies from year to year. This year, the March equinox (the vernal equinox in the northern hemisphere, the autumnal equinox in the southern hemisphere) will occur on March 20, 2010 at 17:32 GMT. The web page below is the "Earth's Seasons" web page from the U.S. Naval Observatory.

No. In March we have an equinox. No. In March we have an equinox. No. In March we have an equinox. No. In March we have an equinox.

The spring equinox is the vernal equinox; the fall equinox is the autumnal equinox.

March 20 (UTC) - the same date is the "vernal equinox" in the Southern Hemisphere.

The date of the equinox is generally on March 21 (plus or minus a day or so, because of the cycle of leap years). You can look up the precise date and time of the equinox on the U.S. Naval Observatory's web site in the "Earth's Seasons" web page. In 2012, the March equinox will occur on March 20, at 05:14 GMT.

The "Harvest Moon" is the full moon closest to the September equinox (September 22 or 23).