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One rotation by the Earth round its axis to bring the 'mean Sun' back to the meridian defines one day.
The mean Sun is a Sun which comes to the meridian regularly once a day. In practice the real Sun can be fast or slow by up to 10 minutes, so the mean Sun is a fictitious sun for which those daily variations are averaged out over a year.
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What controls the length of a day?
The length of a day is primarily controlled by the rotation of the Earth on its axis. The Earth takes approximately 24 hours to complete one full rotation, which determines the length of a day. Variations in the Earth's rotation speed can result in minor changes in the length of a day.
What movement of the planet makes one day as a unit of time?
It is the rotation of the planet one complete revolution that determines the length of a day.
How are the length of the day and year related to Earth's movement through space?
WELL THE LENGTH OF THE DAY IS RELATED TO THE Rotation AND REVOLUTION OF THE PLANET BECAUSE THE PLANET HAS LENGTH BUT IT MIGHT NOT HAVE THE SAME THING AS OUR LENGTH AND IT HAS THE SAME ROTATION AND REVOLUTION.WHAT DO YOU YOUNG GUYS AND LADIES THINK ABOUT MY ANSWER ?PLEASE COMMENT ON IT I WILL APPROACHED THAT BY.
What astronomical event determines the length of the day?
The rotation of the earth causes night and day.
What determines the length of day on a planet?
How long it spins on it's axis
What controls the length of a day?
The length of a day is primarily controlled by the rotation of the Earth on its axis. The Earth takes approximately 24 hours to complete one full rotation, which determines the length of a day. Variations in the Earth's rotation speed can result in minor changes in the length of a day.
What determines the length of a day on earth?
the time it takes the earth to spin around on its axis
What movement of the planet makes one day as a unit of time?
It is the rotation of the planet one complete revolution that determines the length of a day.
How does the movement of the earth affect the length of its day and its year?
the tilt of the planet
What regulates the length of one day?
The answer is surprising. Historically, it is hard to avoid the fact that a day is defined by the apparent movement of the sun. However today, because there are measurable changes in the earth's movements, the day is regulated by extremely accurate clocks that keep time according to a defined and unchanging second. Cesium clocks (or perhaps an even more highly developed technology) are actually regulating our modern concept of day.
What is the length of day on earth?
the length of day on earth is 24 hours
What is determined by the earth's revolution and angle of tilt?
The Earth's revolution around the Sun determines the length of the year and the changing seasons. The angle of tilt (23.5 degrees) causes different parts of the Earth to receive varying amounts of sunlight, leading to the seasonal changes.
What determines the length of night Earth?
The length of night and day depends on how fast a body like Earth is spinning. Of curse, the body's tilt with respect to its star - Sun in Earth's case - continually alters the lengths of days and nights according to the 4 seasons.
What determines the length one day on earth?
the time it takes the earth to spin around on its axis
What type of planetary motion determines the length of the day?
spinning
How are the length of the day and year related to Earth's movement through space?
WELL THE LENGTH OF THE DAY IS RELATED TO THE Rotation AND REVOLUTION OF THE PLANET BECAUSE THE PLANET HAS LENGTH BUT IT MIGHT NOT HAVE THE SAME THING AS OUR LENGTH AND IT HAS THE SAME ROTATION AND REVOLUTION.WHAT DO YOU YOUNG GUYS AND LADIES THINK ABOUT MY ANSWER ?PLEASE COMMENT ON IT I WILL APPROACHED THAT BY.
What astronomical event determines the length of the day?
The rotation of the earth causes night and day.
