Describe how the rotation of Earth is responsible for the movement of the stars.
The rotation of earth is responsible for the movement of stars because as it rotates, objects around it rotate as well, such as planets, they appear to move through the stars because they are that close to earth.
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Addressed below.
Pardon? Sorry, but I do not understand what you mean
Certainly! In addition to the rotation of the Earth, there are a few key factors that contribute to the movement of stars as observed from our planet.
1. Diurnal Motion: The primary reason stars appear to move across the sky is due to the Earth's rotation on its axis. As the Earth spins once every 24 hours, all celestial objects, including the stars, appear to move from east to west across the sky. This apparent daily motion is known as diurnal motion.
2. Celestial Sphere: To understand the movement of stars, imagine an imaginary sphere surrounding the Earth, known as the celestial sphere. When we observe the stars, it appears as though they are fixed on the inside surface of this imaginary sphere, with the Earth at the center.
3. Celestial Equator: The Earth's rotation axis is tilted relative to its orbit around the Sun by about 23.5 degrees. This tilt causes the celestial sphere to be divided into two celestial hemispheres – the northern and southern hemispheres. The celestial equator is an imaginary line on the celestial sphere directly above the Earth's equator.
4. Apparent Motion: Due to the Earth's rotation, stars located closer to the celestial poles (North and South) appear to move less, while stars near the celestial equator appear to move the most. Stars located above the celestial equator appear to move northwards, while stars below the celestial equator move southwards.
5. Circumpolar Stars: Stars positioned very close to the celestial poles do not seem to rise or set. These stars appear to remain at a fixed position in the sky and complete full circles around the pole. These stars are known as circumpolar stars.
It's important to note that while the rotation of the Earth causes the apparent motion of stars, it does not affect the actual motion of stars themselves. The stars are incredibly distant objects, and their movement is governed by various factors such as their own motion through space and gravity.