what date does the march equinox fall on?

Answer 1

UTC Date and time of
solstice and equinox year Equinox
Mar Solstice
June Equinox
Sept Solstice
Dec
day time day time day time day time
2002 20 19:16 21 13:24 23 04:55 22 01:14
2003 21 01:00 21 19:10 23 10:47 22 07:04
2004 20 06:49 21 00:57 22 16:30 21 12:42
2005 20 12:33 21 06:46 22 22:23 21 18:35
2006 20 18:26 21 12:26 23 04:03 22 00:22
2007 21 00:07 21 18:06 23 09:51 22 06:08
2008 20 05:48 20 23:59 22 15:44 21 12:04
2009 20 11:44 21 05:45 22 21:18 21 17:47
2010 20 17:32 21 11:28 23 03:09 21 23:38
2011 20 23:21 21 17:16 23 09:04 22 05:30
2012 20 05:14 20 23:09 22 14:49 21 11:11
2013 20 11:02 21 05:04 22 20:44 21 17:11
2014 20 16:57 21 10:51 23 02:29 21 23:03


The Earth in its orbit around the Sun causes the Sun to appear on the celestial sphere moving over the ecliptic , which is tilted on the equator .

The Earth in its orbit around the Sun causes the Sun to appear on the celestial sphere moving over the ecliptic which is tilted on the equator

An equinox in astronomy is the event when the Sun can be observed to be directly above the equator. The event occurs twice a year, around March 20 and September 23. More technically, the equinox happens when the Sun is at one of two opposite points on the celestial sphere where the celestial equator and ecliptic intersect. In a wider sense, the equinoxes are the two days each year when the center of the Sun spends an equal amount of time above and below the horizon at every location on Earth. The word equinox derives from the Latin words aequus (equal) and nox (night).

In practice, at the equinox, the day is longer than the night. Commonly the day is defined as the period that sunlight reaches the ground in the absence of local obstacles. This is firstly because the Sun is not a single point of light, but appears as a disc. So when the center of the Sun is still below the horizon, the upper edge is already visible and sheds light. Furthermore, the atmosphere refracts light downwards, so even when the upper limb of the Sun is still below the horizon, its rays already reach around the horizon to the ground. These effects together make the day about 14 minutes longer than the night (at the equator, and more towards the poles). The real equality of day and night happens a few days towards the winter side of the equinox.

Note: Equal nights is an abstraction strictly speaking only true when Earth and Sun are considered particles, that is ignoring atmospheric effects, parallax, perturbations, et cetera, It is not supposed to be exactly measurable.

http://www.answers.com/equinox

Answer 2

The sunlight reaches its fabulous distance north or south of the equator two times each 3 hundred and sixty 5 days. each of those dyas, whilst the sunlight is farthest north or south of the equator is definitely a solstice. The day whilst the sunlight is farthest north of the equator is the summer season solstice in the Northern Hemisphere. It happens around June 21 each 3 hundred and sixty 5 days. this is the longest day of the 300 and sixty 5 days in the Northern Hemisphere. around December 21, the sunlight is farthest south of the equator. this is the wintry climate solstice in the Northern Hemisphere. Halway between the solstices, neither hemisphere is tilted in the direction of or removed from the sunlight. this occurs two times a 300 and sixty 5 days, whilst the midday sunlight is straight away overhead on the equator. each of those days is many times happening as an equinox, which potential "equivalent night." throughout an equinox, day and night are each approximately 12 hours long everywhere in the international. The vernal (spring) equinox happens around March 21 and marks the commencing up of spring in the Northern Hemisphere. The autumnal (fall) equinox happens around September 22. It marks the commencing up of fall in the Northern Hemisphere.

Answer 3

The other answerers are only partly correct.

If you're in Europe or eastward, the date is March 21st.

But if you're in the Western Hemisphere, the March equinox happens about 8 p.m. Eastern Time on March 20TH!

Answer 4

i am in 6th grade, so i have studied about equinox just a few days ago. i am 110% sure that it is 21st of march. on 21st march both the hemispheres receive equal amount of heat. hope i helped u.
sumi

Answer 5

March 21st

Answer 6

spring equinox falls on the 21st of March this yr, I keep my eye on it since this yr it falls on my birthday, and not the day before.

Answer 7

Everyone else says March 21st, so I'm going to have a stab at April 4th.
Am I right?

Answer 8

21st

Answer 9

21st