If the entire galaxy is in constant motion, Why do the stars appear fixed?

Bride, let’s explain.

Although stars appear motionless, they are actually constantly moving.

Moreover, everything in the universe is peaceful moves quickly. But everything is also very far away. In other words, stars move at a speed of several kilometers per second, which is quite fast. However, on a galactic scale this speed is negligible.

So if we assume that even the nearest stars are a few light years away, the motion of a star for 60-70 years is It seems extremely small to us. In fact, it seems like they resolved at the same point.

For example, let’s look at a relatively nearby star that is ten light-years away from Earth.

The star moves through space at a speed of 10 km/s. With a quick calculation, this star will have a lifespan of about 100 years. It has moved 30 billion kilometers We can remove it. This distance seems quite large at first glance, right?

But the same star is actually 60,000 billion miles away from us. So do you think a distance of 30 billion kilometers can be noticed from a distance of 90,000 billion kilometers? The answer is absolutely no.

This is exactly why the stars appear motionless in the sky. However, both the stars and the galaxy, at extremely high speed in space is on the move.

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