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# What is the Earth's axis?

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### Quick Answer

The Earth's axis is positioned at an angle of 23.5 degrees away from the plane of the ecliptic. An objects axis, or axial tilt, also referred to as obliquity, is the angle between an objects orbital axis and rotational axis, or regularly, the angle between its orbital plane and equatorial plane.

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### Full Answer

The Earth's axis is determined through a number of steps. The first is to locate the line which passes through the sun's north and south equators. The next step is to use the plane of the ecliptic, which is an imaginary disc that surrounds the suns equator in all directions and that is also where all of the planets in the solar system are located. The Earth's axis is determined by measuring its angle in relation to the sun's axis of rotation.

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The Earth is constantly spinning on its axis, allowing sunlight to shine on different areas of the Earth at different times of the day, creating daytime when the Sun hits a specific area. When the Sun is not shining on a specific area of the Earth, it is nighttime. Since the Sun does not hit all of the Earth at the same time, it is daytime in some parts of the world, while it is nighttime in others.

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The tropical zone is an area located around the Earth's axis at the equator. It is limited to the Tropic of Cancer in the northern hemisphere and the Tropic of Capricorn in the southern hemisphere.

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The Earth experiences days and nights as a result of the planet spinning on its axis. As the planet spins, the part that is facing the sun experiences day, while it is night for the part facing away from the sun.

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The angular velocity of the Earth around its axis is 0.000417 degrees per second. The angular velocity of the Earth around the sun is 0.986 degrees per day.

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