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chill85
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How are the north celestial pole and south celestial pole related to Earth's north and south pole
Earth's celestial poles are the points on the Earth's surface that align with the Earth's axis of rotation. The North celestial pole is located in the northern hemisphere and the South celestial pole is located in the southern hemisphere.
The celestial poles are defined by the Earth's axis of rotation and the stars, while the geographic poles are defined by the Earth's physical axis of rotation and the Earth's surface. This means that the celestial poles are fixed in the sky, while the geographic poles can shift slightly due to the Earth's movement.
No, the celestial poles can only be seen from locations within the Earth's polar regions. The North celestial pole can be seen from the northern hemisphere and the South celestial pole can be seen from the southern hemisphere.
The Earth's tilt, or obliquity, is the angle between the Earth's axis of rotation and its orbital plane around the Sun. This tilt causes the celestial poles to appear to move slightly over time. The North celestial pole, for example, will shift towards different stars and constellations as the Earth orbits the Sun.
Yes, the celestial poles are important for navigation, especially in the past before the invention of modern technology. The North celestial pole is used to determine the North direction, and the South celestial pole is used to determine the South direction. This is because the celestial poles appear to be fixed in the sky, making them useful reference points for navigation.