1.what do you think is the reason behind the change of position of the constellations throughout the year?
2.How do the stars move? Describe the movement of the stars in the night sky
3.How is the motion of stars similar to the motion of the Sun?
4. Wht does Polaris stand motionless in the sky?
2.How do the stars move? Describe the movement of the stars in the night sky
3.How is the motion of stars similar to the motion of the Sun?
4. Wht does Polaris stand motionless in the sky?
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Answer:
Explanation:
1. the constellations shift gradually to the west. This is caused by Earth's orbit around our Sun. In the summer, viewers are looking in a different direction in space at night than they are during the winter.
2. These apparent star tracks are in fact not due to the stars moving, but to the rotational motion of the Earth. As the Earth rotates with an axis that is pointed in the direction of the North Star, stars appear to move from east to west in the sky.
3. Because the daily motion of the stars is driven by the same mechanism that drives the motion of the Sun, the stars move in almost exactly the same way that the Sun moves. ... It spins about the Earth's pole, so that the celestial poles appear stationary and the stars and planets seem to move in circles around the poles.
4. While the Earth turns, Polaris appears to stand still only because of its position in the sky: lined up almost perfectly with our planet's axis. ... That makes Polaris the Earth's North Star. (There is no corresponding South Star, simply because the South celestial pole isn't pointing at any easily visible star.)