What fraction of earth expieriences night at the same time?

Answer 1

About half the Earth, if you define "night" as when the Sun is not above the horizon. Less, if you want the Sun to be low enough below the horizon, so that it is sufficiently dark - for example, 6 degrees or 12 degrees below the horizon.

Answer 2

Half of the Earth experiences night at any given time, as the planet rotates on its axis causing daylight to be present on one side while darkness falls on the other. This phenomenon occurs continually as the Earth completes a full rotation every 24 hours.

Answer 3

uasually there is no place An Equinox occurs twice a year, when the tilt of the Earth's axis is inclined neither away from nor towards the Sun, the Sun being vertically above a point on the Equator. The name is derived from the Latin aequus(equal) and nox (night), because around the Equinox, the night and day are approximately equally long. The term "Equinox" can also be used in a broader sense, me An Equinox occurs twice a year, when the tilt of the Earth's axis is inclined neither away from nor towards the Sun, the Sun being vertically above a point on the Equator. The name is derived from the Latin aequus (equal) and nox (night), because around the Equinox, the night and day are approximately equally long. The term "Equinox" can also be used in a broader sense, meaning the date when such a passage happens. The word is also used for the same event happening on other planets and in setting up a celestial coordinate system; see Equinox (celestial coordinates). At an Equinox, the Sun is at one of two opposite points on the celestial sphere where the celestial equator (i.e. declination 0) and ecliptic intersect. These points of intersection are called equinoctial points: the vernal point and the autumnal point. By extension, the term Equinox may denote an equinoctial point. An Equinox happens each year at two specific moments in time (rather than two whole days), when the centre of the Sun can be observed to be vertically above the Earth's Equator, occurring around March 20/21 and September 22/23 each year. aning the date when such a passage happens. The word is also used for the same event happening on other planets and in setting up a celestial coordinate system; see Equinox (celestial coordinates). At an Equinox, the Sun is at one of two opposite points on the celestial sphere where the celestial equator (i.e. declination 0) and ecliptic intersect. These points of intersection are called equinoctial points: the vernal point and the autumnal point. By extension, the term Equinoxmay denote an equinoctial point. An Equinox happens each year at two specific moments in time (rather than two whole days), when the centre of the Sun can be observed to be vertically above the Earth's Equator, occurring around March 20/21 and September 22/23 each year.

Answer 4

no it is just night time for only half at the earth at one time.Say if it was night time in this side of the earth the other side would be day.The earth rotates around the sun and the moon.If earth did not have gravaty all fourms of life would shater off into space.The moon does not rotate and it is next to earth because of earths invisable fource of gravaty.The moon makes different frases each week.The moon does that because the earth is circling it and the sun making different frases.

Answer 5

The day and night are of equal length on the equinox ("equal nights") on March 21 and September 21 (approximately). That's true anywhere in the world.

Also, the North Pole and South Pole each would qualify, with days and nights that are just 6 months long.

Answer 6

Day and night will have approximately the same length:

1) Any part of the world, at either of the equinoxes.

2) At the equator, any time of the year.

Day and night will have approximately the same length:

1) Any part of the world, at either of the equinoxes.

2) At the equator, any time of the year.

Day and night will have approximately the same length:

1) Any part of the world, at either of the equinoxes.

2) At the equator, any time of the year.

Day and night will have approximately the same length:

1) Any part of the world, at either of the equinoxes.

2) At the equator, any time of the year.

Answer 7

At any moment, nominally 50% of the Earth's surface is directly illuminated by the sun,

while the other 50% isn't.

But there are large regions of the Earth's surface where the sun may stay down

for periods ranging from 24 hours to six months, while other places on Earth are

experiencing 'normal' 24-hour cycles of day and night.

Answer 8

About one half of the Earth is in daylight and the other half is in night. (It isn't quite exactly one half, because the atmosphere of the Earth bends sunlight around the curve of the Earth just a little, so there is a little more daylight than night.

Answer 9

The equator.

The equator.

The equator.

The equator.

Answer 10

Day and night will have approximately the same length:

1) Any part of the world, at either of the equinoxes.

2) At the equator, any time of the year.