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Equinox

en.wikipedia.org/wiki/Equinox

An equinox is an astronomical event in which the plane of Earth's equator passes through the center of the Sun, which occurs twice each year, around 20 March and 23 September. On an equinox, day...

Equinox Does Not Have Equal Day & Night Length - Timeanddate.com

www.timeanddate.com/astronomy/equinox-not-equal.html

On the equator, the day and night stay approximately the same length all year round, but the day will always appear a little longer than 12 hours, due to the ...

Nights are always about 12 hours long at the - Answers.com

www.answers.com/Q/Nights_are_always_about_12_hours_long_at_the

equator.

Length of Day and Night at the Equinoxes - Astronomical ...

aa.usno.navy.mil/faq/docs/equinoxes.php

Jun 14, 2011 ... The dates on which day and night are each 12 hours occur a few days ... from sunrise to sunset is always several minutes longer than the night.

When is nightime the same length as daytime?: Planetarium

museumvictoria.com.au/planetarium/discoverycentre/faqs/when-is-nightime-the-same-length-as-daytime/

Mar 19, 2010 ... ... amount of daytime and nighttime, exactly 12 hours each, is called the equinox. ... of daylight and 12 hours of night, because this day is not exactly 24 hours long! ... We love receiving comments, but can't always respond.

Are the days and nights exactly 12 hours long at the Equator all ...

boards.straightdope.com/sdmb/showthread.php?t=385863

I commend you to this site, Complete Sun and Moon Data for One Day, which pretty much answers the question. The length of the day stays ...

Day and night exactly equal at equinoxes? | Astronomy Essentials ...

earthsky.org/astronomy-essentials/why-arent-day-and-night-equal-on-the-day-of-the-equinox

Sep 18, 2016 ... On the day of the equinox, the center of the sun would set about 12 hours after rising - given a level horizon, as at sea, and no atmospheric ...

Are the days and nights equal at the equator all year round? | Yahoo ...

answers.yahoo.com/question/?qid=20071211154228AAXokWs

Dec 11, 2007 ... In June there are 12 hours and 6 minutes of daylight. In january ... Since the " Circle of illumination" always cuts the Equator into two equal halves, The Equator will theoretically have equal lengths of days/nights, all year long.

Why day is longer than night at the equinox - USATODAY.com

usatoday30.usatoday.com/weather/wequinox.htm

Often you hear that day and night are equal length on the spring and fall equinox, ... On the equinox, the sun's center sets 12 hours after it rose all over the world. ... USA, morning civil twilight and evening civil twilight are 25 to 30 minutes long.

DATES WHEN DAYS AND NIGHTS REACH 12 HOURS IN LENGTH ...

www.artscalendararticles.mysite.com/

After the long nights of darkness in the winter, it is when the sun and moon divide the day so there are again 12 hours of daylight and darkness in the day for ...

More Info

Is the Sun always up for exactly 12 hours at the equator? (Beginner ...

curious.astro.cornell.edu

Jun 27, 2015 ... It is always exactly 12 hours. There are a couple ... (Intermediate) · How does night and day work? (Beginner) ... (Beginner) · If spacetime is curved, is it possible for us to look into space and see light from Earth from long ago?

Ask Tom Why: How does the length of day and night vary at the ...

articles.chicagotribune.com

Jul 8, 2011 ... Daylight at the equator is always a bit longer than darkness, the ... by only 2 minutes during the year, from 12 hours 6 minutes to 12 hours 8 ...

On Spring Equinox, Day and Night Equal in Name Only

news.nationalgeographic.com

Mar 20, 2006 ... The day of light and dark equality always happens before the spring and ... day and night of the equinox would each be exactly 12 hours long.