0
Which is longer the stellar day the sidereal day or the solar day?
Wiki User
∙ 11y ago
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.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
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.
The length of one day in Venus or even a year?
Venus takes 243 days to spin on its axis relative to the background stars, while it takes 224.7 days to orbit the sun.Although its spin on its axis is longer that its orbital period, an apparent or solar day is 116.75 days, since it spins in the other direction to Earth and most other planets.The length of the solar day is about 117 days. Thus a Venusian year is less than 2 Venus days long!Good, an answer that mentions the solar day. Remember though thereis also the sidereal day which is about 243 days.
How many earth day is there in a mars day?
The day lengths are very similar. Earth has a 24 hour day. This is the"solar day". Earth spins once in about 4 minutes less time than the solar day and that's called the sidereal day. Mars spins once in about 24 hours 37 minutes. The solar day on Mars is about 2 minutes longer.
Why is the solar day on Mercury longer than earth's solar day?
1) Mercury rotates very slowly. It takes Mercury about 58.6 Earth days to rotate just once. That's the length of the sidereal day. 2) Mercury has a solar day of about 176 Earth days in length. So, Mercury's solar day is much longer than its long sidereal day. That's because of the combination of slow rotation with a short orbital period (about 88 Earth days).
What is the length of a day for all of the planet to planet?
There are two main definitions of "day" for a planet:1) Sidereal day. That's the time taken to rotate once.2) Solar day. That's the time taken for the Sun to complete one apparent journeyaround the sky. Usually it's given as the "mean solar day", which is the average value.The solar day depends on the planet's orbital motion, as well as its rotation.Here are the details, with slight approximations:Mercury : sidereal day, 58.65 Earth dayssolar day, 175.94 Earth daysVenus: sidereal day, 243.02 Earth dayssolar day, 116.75 Earth daysEarth: sidereal day, 23.934 hourssolar day, 24.000 hoursMars: sidereal day, 24.623 hourssolar day, 24.660 hoursFor these planets both days are nearly the same length:Jupiter: 9.92 hoursSaturn: 10.66 hoursUranus: 17.24 hoursNeptune: 16.11 hours
What is longer a sidereal day or solar day?
a solar day
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.
Which is used for our clocks Sidereal or solar day?
solar day
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 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 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.
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.
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.
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.
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, I believe you have that correct.
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.
