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There are two days out of the whole year when day and night are just about the same length: 12 hours. These days are called equinoxes because the direct sunlight rays move toward the equator, making the sunlight about equal in both the Northern and Southern Hemispheres. The Fall (autumnal) equinox for the Northern Hemisphere is September 21 or 22, and the Spring Equinox is March 20. In the Southern Hemisphere, the names are reversed for the two days.
Because of the apparent width of the solar disc, the days at the equinoxes are still slightly longer than the night. The parity of day and night occurs the day before the vernal equinox, and the day after the autumnal equinox.
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Why are there places on earth that experience polar days and polar nights?
i think because of the Earth's elliptical orbit, less sunlight reaches these places at the aphelion. =)
What would happen to both night and day if the earth took twice as long to spin on its axis?
Days and nights would be twice as long, obviously. The slower rotation would have impacts on the weather, much of which is driven by the Earth spinning. Days would be warmer and nights cooler, for example, because each spot on the Earth would have twice as long in the sunshine to heat up, with twice as long at night for heat to radiate away.
Why do we have alternate days and nights?
The world alternates between the morning and the night because the Earth is constantly rotating around the sun. When this happens, the part where you are on Earth will eventually be pointing away from the sun. Thus creating morning and night alternations.
Was the world really created in 7 days?
As most of the traditions narrate, according to the heavenly religions, the world (7 Skies and the earth) was created in 6 days and the 7th day was meant for rest. The rest day is Friday for the Muslims, Satureday for the Jews and Sunday for the Christians. Yet, the duration of the Day can't be established for certain. Many of the religious Figures are symbolic. Day may be equal to 1000 normal earth days, or may be equal t0 50,000 days each. Our Creator could have created everything within a twinkling of an eye, but he created it in 6 Days.
How long is one year on other planets in comparison to earth?
A year on our planet is 365.25 Earth days. Other planets take more or less time depending on their orbital distances from the Sun. Mercury - 88 Earth days Venus - 225 Earth days Mars - 687 Earth days Jupiter - 11.86 Earth years Saturn - 29.46 Earth years Uranus - 84 Earth years Neptune - 164.8 Earth years Pluto (now a dwarf planet) - 247.7 Earth years
Why are days and nights not equal on the earth?
because earth is rotating and revolving
Is days and nights is equal at equator?
There are some tiny variations because of the tilt of the earth, but we can say that days and nights are roughly equal at the equator.
Why are the days and nights not of equal duration throughout the world?
Because of the tilt of earth's axis.
Why are days and nights are not equal duration throughout the year?
Because of the tilt of the Earth's axis.
Why are days and nights not equal duration throughout the world?
Because of the tilt of earth's axis.
When are days equal to nights?
On Equinoxes
Are days and nights equal in a equinox?
Yes
Where is the earth facing Near the end of both March and September?
Equinox occurs at the end of march and september. Days and nights are equal at that time.
Which would be longer on your planet your planet your days or nights to earth?
Days are longer than nights in the summer, and the reverse in the winter.
How long are the nights in Venus?
About 121 Earth days
What planet has cold nights and hot days?
Earth
What days and nights all over the world are equal in length?
no
