The September Equinox is here, learn what it is

The name equinox means "equal night" in Latin. There are two equinoxes every year - around 20 March and 23 September. Theoretically, it is the day of the year when all points on the earth's surface experience the same lengths of daylight and darkness - 12 hours of each. The September equinox occurs the moment the Sun crosses the celestial equator - the imaginary line in the sky above the Earth's Equator - from north to south. Since the seasons are opposite on either side of the Equator, equinox in September is also known as the Autumnal (fall) equinox in the northern hemisphere. In the Southern Hemisphere, it's known as the spring (vernal) equinox.

ADVERTISEMENT


Equinox, the Sun rises directly in the east and sets directly in the west

The equinox occurs because the earth moves in two different ways. First, it spins on its polar axis, a line through the north and south poles, causing the alternation of day and night every day and secondly, it moves in its orbit around the sun once in every 365.25 days. The equinox occurs when these two motions intersect.

Equinoxes do not occur on the same day every year. Generally, it occurs about 6 hours later each year, with a jump of a day (backwards) on leap years. The dates for 2016 equinoxes are: March 20 and September 22.

Reply to this article

Read more: Equinox, Newsletter Articles, Energy Environment

Related Photos

Plastic rivers flow through Haiti   Equinox, the Sun rises directly in the east and sets directly in the west   The Moon is Earth's only permanent natural satellite   Massif de La Hotte selected by UNESCO as biodiversity hotspot   The government of Haiti and the environment   Little Haiti threatened by Gentrification as sea level rises in Miami   Entire community swallowed as Lake Azuéi rose uncontrollably   six long lost species of frogs found in Haiti   The Ricord's Iguana, Haiti's giant iguanas, threatened species  

« How to Prepare Yourself for A US Visa Interview | Main | The City Of Pétion-Ville, Founded By Boyer on September 22, 1831 »

Return to Articles List

Leave a Reply

Name (required)

E-mail (required, will not be published)

Subject: The September Equinox is here, learn what it is edit

» »

Our objective is to share with you news and information about Haiti and the people of Haiti. Traditions, habits and the way we were  or  grew are alive in this site. We highly recommend that you Subscribe to our Newsletter and also share with us some of the things that are memorable and made us unique people.