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A day is the period of time it takes the Earth to spin (rotation) and return to the same position of the overhead Sun. This is the "solar day" that is about 24 hours.
A year is the period of time that it takes the Earth to complete one orbit (revolution) of the Sun.
The comparison between the two is about 365.2425 days per year. The extra fractions of a day are combined every four years as a leap day, February 29.
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*The "solar day" (time taken for the Sun to go from one noon to the next) is longer than the "sidereal day" (time of rotation observed away from Earth, as seen in the positions of the stars) because the Earth is moving around the Sun. The actual rotation period is about 23 hours, 56 minutes, and 4.1 seconds. We use the "mean solar day" to average out the natural variations in the Earth's orbital speed, as determined by its distance from the Sun.
Wiki User
∙ 11y ago
Wiki User
∙ 13y agoHow long it takes earth to do a full revolution around the sun
Wiki User
∙ 13y agoA planets year is the time it take to make one orbit of its star.
Wiki User
∙ 15y agoIt is the amount of time it takes for the Earth to make one revolution around the Sun.
Wiki User
∙ 12y agoBy the amount of time it takes for it to travel around the Sun
Wiki User
∙ 13y agoThe length of the day is determined by how long it takes the earth to spin once on its axis. The year is determined by how long it takes the earth to revolve around the sun.
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Do all planets in the Solar system have the same length of the year?
no
Which question should you ask to find out the length of a planets year?
bussy
Do Jovian planets rotate faster than Terrestrial planets?
No. The length of a planet's year is determined by its distance from its sun. In our solar system all of the Jovian planets orbit farther from the sun than the terrestrial ones and therefore have longer years.
What happens to the length of the planet year as you move away from the sun?
I would define a "planetary year" as the time it takes to make one complete orbit around the sun. The farther from the sun you go the farther the distance one orbit is (larger radius = larger circumference). The length of the planetary year depends upon the distance from the sun and the orbital speed of the planet. This website has some handy information about the planets in our solar system. http:/wwwzperiodzenchantedlearningzperiodzcom/subjects/astronomy/planets -------------------------------------------------------------------------------------- It should be noted however that some farther away planets have shorter planetary years than earth and some closer planets have longer planetary years (due to orbital speed).
What did Kepler discover about the distance of the planets from the sun and the length of their orbits?
Keplar showed that there is a relationship between the planets distance from the sun and the time taken for one orbit (planets year). This is described in Keplars third law; the square root of the time taken to orbit the sun is proportional to the cube of the average distance between the sun.
How is the length of the year is determined?
A planets year is the time it take to make one orbit of its star.
Do all planets in the Solar system have the same length of the year?
no
Which question should you ask to find out the length of a planets year?
bussy
How may time does the earth go around the sun in a year?
Once. that is how the length of our year determined.
What is the length of a year on Uranus given in earth years?
84 known moons and planets
Is this true or false the length of a planet's year is determined by how fast it spins?
False, the speed it spins on it's axis determinds the length of day. The speed it rotates the sun determinds the length of it's year.
How has the length of the astronomical unit been most accurately determined?
Radar was reflected off the surfaces of nearby planets whose distances are known in astronomical units.
What is the length of time it takes planetary objects to revolve around the sun?
Typically, this length of time is called a "year". Each planet's year is a different length than that of the other planets and increases as the planet is further from the Sun.
How many days are a year on the dwarf planets?
There is no constant year length for planets, dwarf type or otherwise. A planet's period (year length) depends entirely upon how long it take to orbit its star. Depending on the planet and its situation, that might take a matter of a few days, or a few years, or even centuries.
What is the lengthof a year for all planets?
The length of a year for a planet is the amount of time it takes for the planet to make a complete revolution around the sun. For the Earth, this is about 365 1/4 days. The length of time for other planets in our solar system to revolve around the sun is can be longer or shorter.
Why does the length of a day and year vary from planet to planet?
Some planets rotate faster or than others. Also the planets take different times to orbit the Sun.
Are years on other planets the same length?
No. Every planet has different length years. The farther a planet is from the sun, the longer year it has. Mercury's year is only 88 of our days. Earth's year is exactly 1 year long. Jupiter's year is about 12 of our years, and Pluto's year is 248 of them.
