UNIVERSE
SOLAR STRUCTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The amount of time it takes the Sun to rotate around the galaxy.
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The amount of time it takes a celestial body to rotate around its axis once.
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The amount of time it takes to get to Mars from Earth.
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The amount of time it takes to the Moon to orbit the Earth.
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Detailed explanation-1: -The time it takes for a planet or other celestial object to complete one spin around its axis is called its rotation period. Earth’s rotation period is about 24 hours, or one day.
Detailed explanation-2: -Earth makes one complete rotation on its axis every 23 hours and 56 minutes, which is rounded up to 24 hours. Does this time sound familiar? The 24 hours that Earth takes to make one rotation is equal to one day.
Detailed explanation-3: -The earth takes about 24 hours to complete one rotation around its axis. The period of rotation is known as the earthday. This is the daily motion of the earth.
Detailed explanation-4: -The rotation period of a celestial object (e.g., star, gas giant, planet, moon, asteroid) may refer to its sidereal rotation period, i.e. the time that the object takes to complete a single revolution around its axis of rotation relative to the background stars, measured in sidereal time.
Detailed explanation-5: -The time taken by a planet or a satellite to rotate once around its own axis is called period of rotation.