How many planets are there in the universe?

At the International Astronomical Union Congress held in Sydney on the 22nd, Australian astronomers said that there are about 700 trillion stars in the entire visible universe, that is, 1022 stars.

Even in the darkest part of the earth, only about 5,000 stars, including stars and some planets in the solar system, can be seen when looking at the sky with the naked eye, and only about 100 stars can be seen in brightly lit cities.

Using astronomical telescopes, Australian astronomers first select a small area of the universe for observation, measure the brightness of all galaxies in that area, and calculate the number of stars contained in all galaxies, and then use the results to extrapolate the number of stars in the entire visible universe. Astronomers believe that this figure is much more accurate than previous estimates.

The number of stars reported by Australian astronomers at the International Joint Astronomical Congress in Sydney can indeed be called astronomical. 700 trillion stars is the addition of 22 zeros to the number 7. That's more than all the grains of sand in the sands and deserts of the planet.

Dr Dryford of the Australian National University said: "The actual number of stars in the universe may be even larger than that, and may even be uncountable. He believes that many stars in the universe have planets, and that some of them may have life on them.

But because they are so far away from Earth, humans may never be able to have any contact with the creatures that live there.

You're talking about planets, not stars, and that's a tough question, because the number of stars is about 700000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

I fainted!!

There are as many as you want, and you can have as many hairs as you want.

If Hawking's theory is right, there should be a number, if it is the Russian gang, there is no number.

Planets are not just in the solar system.

If you say the solar system].

Now eight Pluto have been ruled out.

So far, no one knows how many planets there are in the universe, and it seems that there are no exact numbers. There are now more than 200 billion stars found in the Milky Way, not to mention beyond the Milky Way, and there are several planets in general, so the number of specific planets is impossible to count!