Astronomers can look at the same point in the sky for long periods of time. As well in the vast universe, While there are so many things to pay attention to.

Of course, looking at the same point so many times There are some reasons behind it. How about looking at these reasons together?

Astronomical objects, they are very far away…

such as distant galaxies and quasas (an extremely luminous active core of galaxies supported by a supermassive black hole surrounded by a disk of gas) emits very weak light and cannot be detected with short-term observations. There are astronomical items.

To see them clearly, it is necessary to look at them for a long time, so that weak light sources accumulate. For example, the Hubble Space Telescope for weeks By looking at a very small part of the sky, he revealed the most distant galaxies in the universe.

They get a better view of things that change over time.

Star explosions, movements of matter, supernova explosions It may be necessary to look at the same point for a very long time to understand how events like this occur.

They also ensure that unexpected events are noticed through constant observation. If If they kept changing regions they may not have seen these changes.

It is necessary to map the universe in detail.

To map the universe, elements such as the cosmic background radiation and the distribution of galaxies must be carefully examined, and a point must be continuously looked at to examine them. But more this way detailed and accurate results can be obtained.

We must not forget that the margin of error decreases as you look at the same point for a longer period of time. As in all other scientific research; length and repetition of observations, reduces possible errors.

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