GK
SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Stars never move.
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true
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false
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Polaris is the star in the center of the star field; it shows essentially no movement. Earth’s axis points almost directly to Polaris, so this star is observed to show the least movement. The other stars appear to trace arcs of movement because of Earth’s spin on its axis.
Detailed explanation-2: -Simply put, it’s because of gravity-because they are moving around the center of their galaxy, for example. Gravity makes every object in space move. But as most stars are far away from us and space is so big, that proper motion is very small in a human lifetime.
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