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What is longer a sidereal day or solar day?
a solar day
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.
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.
What planet in your solar system has the longest day?
Venus, its day is equivalent to 243 Earth Days. That's the rotation period, or "sidereal day". However the "solar day" on Venus is only about 117 Earth days. If you mean the "solar day" then Mercury has the longest day because Mercury has a solar day of about 176 Earth days.
Which of the inner planets have the shortest day?
Of the four inner planets (Mercury, Venus, Earth, and Mars), Earth has the shortest day at 23 hours and 56 minutes sidereal rotation period. That's the "sidereal day". The day that lasts exactly 24 hours is called the "solar day". For both "days", Earth has the shortest day.
What is longer a sidereal day or solar day?
a solar day
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
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.
Why do we use the mean solar day rather then the sidereal day to measure the time for one earth rotation?
We don't. The sidereal day IS used as the measure of the Earth's rotation. The mean solar day is used to regulate our daily lives because that's the average time for the Sun to complete its apparent daily journey round the sky. The difference is because the solar day takes into account the effect of the Earth's orbital motion which slightly alters the position of the Sun in the sky.
What is the length of day of the planet Venus?
It is about 117 Earth days (for the "solar day") or 243 Earth days (for the "sidereal day").
What planets days is more than half as long as its years?
The "Solar day" on Venus. Or, the "Sidereal day" on Mercury.
What planet has the second shortest day?
Mercury has the 2nd longest "sidereal day" with a sidereal rotation period of 58.646 Earth days. The longest "sidereal day" day is Venus, with a sidereal rotation period of 243.018 Earth daysIf you use the "solar day" as your definition of "day", the order is reversed. Mercury then has the longest day and Venus has the second longest day.
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.
How many hours on mercury in a day?
A mercury day (sidereal rotation period) is 58.646 earth days = 1407.5 hours.
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.
