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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
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.
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 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 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.
How long are days on earth?
There are different frames of reference: 1 True solar day 2 Mean solar day 3 Stellar (sidereal) day If you calculate 60 seconds times 60 minutes times 24 hours you get 86 400 seconds.
