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Which is used for our clocks Sidereal or solar day?
Solar day is typically used for our clocks and calendars, as it is based on the Earth's rotation relative to the sun. Sidereal day, on the other hand, is based on the Earth's rotation relative to distant stars.
The fact that the Earth has moved along its orbit in the time it took to rotate once is the reason for?
the difference between a solar day (based on the position of the Sun) and a sidereal day (based on the position of the stars). Because the Earth has moved in its orbit, it needs to rotate a little longer to bring the Sun back to the same position in the sky each day.
If the direction of rotation of the Earth were reversed and the direction of revolution remained the same would the sidereal day be longer than the solar day?
Yes, if the rotation of the Earth were reversed, the sidereal day (based on the Earth's rotation in relation to distant stars) would be longer than the solar day (based on the Earth's position relative to the Sun), because the Earth would need to rotate slightly further to complete a full rotation in relation to the stars.
What planets days are longer than your year?
Venus "sidereal day" is longer than its year. Mercury's "solar day" is longer than its year. However, there is no planet in our solar system with a day longer than our year on Earth.
Why is length of a sidereal day and a solar day on venus so different?
The sidereal day is about 243 Earth days. That is the time for the planet to rotate once . The solar day is 117 Earth days,roughly. That is a big difference. On Earth the difference between these two days is only about 4 minutes. The reason for the big difference on Venus is that Venus rotates very slowly. The solar day depends on the rotation of a planet AND its orbital motion. The slow rotation makes the effect of the orbital motion much greater on the length of the solar day. Incidentally Venus rotates in the opposite direction to Earth. That's why the solar day is shorter than the sidereal day. On Earth it's the other way round.
How a solar day is differ from a sidereal day?
A solar day is 24 hours whereas a sidereal day is 23 hours and 56 minutes
How is a solar day different from a sidereal day?
A solar day is 24 hours whereas a sidereal day is 23 hours and 56 minutes
How many hours is a Mars day?
24 Hours and 37 Minutes Improvement: That's the "sidereal day". The "solar day" is about 2 minutes longer.
Why is a solar day 4 minutes longer than a sidereal day?
A solar day is approximately 24 hours long, while a sidereal day is about 23 hours and 56 minutes. The difference arises because the Earth not only rotates on its axis but also orbits around the Sun. As the Earth moves in its orbit, it must rotate slightly more than one full turn for the Sun to return to the same position in the sky, resulting in the solar day being about 4 minutes longer than the sidereal day.
Which is longer the stellar day the sidereal day or the solar day?
Usually the solar day is the longest. The other two are very similar in length to each other. For example, the solar day on Earth is about 4 minutes longer than the other two "days". However, for the planet Venus the solar day is the shortest. That's because Venus has retrograde rotation.
Is a sidereal day longer or shorter than a solar day?
The Sun crosses the meridian (the imaginaryline in the sky from due north to due south and passing directly overhead) at solar noon. The period between two successive solar noons is a "solar day". When you reckon the period of time between two successive meridian transits of a distant star, or the vernal equinox, that is a "sidereal day". In simple terms the sidereal day is the rotation period of a planet.
Which is used for our clocks Sidereal or solar day?
Solar day is typically used for our clocks and calendars, as it is based on the Earth's rotation relative to the sun. Sidereal day, on the other hand, is based on the Earth's rotation relative to distant stars.
Why the length of day appears to be 4 minutes longer than it actually is?
There is more than one definition of "day". On the Earth one "day" is about 4 minutes longer than the other. Both are correct. The "solar day" is 24 hours, but the "sidereal day" is about 4 minutes shorter. The sidereal day is the time the Earth takes to rotate once. The solar day is the time taken (on average) for the Sun to complete its apparent daily journey around the sky. The solar day is a bit longer because the Earth orbits the Sun and that affects the position of the Sun in the sky. The Earth needs to rotate for about 4 minutes more than the "sidereal day" to have the Sun in the same place in the sky again.
The fact that the Earth has moved along its orbit in the time it took to rotate once is the reason for?
the difference between a solar day (based on the position of the Sun) and a sidereal day (based on the position of the stars). Because the Earth has moved in its orbit, it needs to rotate a little longer to bring the Sun back to the same position in the sky each day.
Is the difference between the length of a solar and sidereal day caused by revolution?
Yes.
What fraction of a year in a day?
A solar day is approx 100/36526 solar days.
What is the time difference between mars and earth?
Its 'sidereal' day is 24 hours, 37 minutes and 22 seconds, and its solar day 24 hours, 39 minutes and 35 seconds. A Martian day (referred to as “sol”) is therefore approximately 40 minutes longer than a day on Earth.
