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There are more stars in the universe than grains of sand really?

It is a problem of cosmic ratios, but when you sit on the shore or you look at the sky, you will feel.

"The total number of stars in the universe is more than the sand of the world" - an American astronomer has claimed.

He said this at the cosmos of his popular TV show in the 1980s. But how true is that?

Is it possible to count?

We will try to match that now.

The number of the shadow

Professor Gary Gilmour, an astronomer at Cambridge University, who has counted the number of stars in the universe for many years.

He is leading the running of the UK-based project Guyia.

It includes a European Space Station, which is now working on the map of the sky.

To calculate how much we have in the universe, Gaia team now uses their data to create a large three-dimensional model of Milky Way or galaxy.

Professor Gilmour says that according to the distance from each other, the information found on each star is larger than two hundred million stars.

That is, if there is one percent of the total stars in the European part, then our galaxy may have twenty-two thousand million stars altogether. But this is just a calculation of a galaxy.

Fortunately, our galaxy is a typical or common kind of galaxy.

Most of the galaxies are just like our galaxy.

Professor Gilmour says that, because of that, we can use it to create an average account.

That is, if the number of galaxies can be estimated, then it is possible to find out the number of stars. It is not a big problem for astronomers.

If there are ten thousand galaxies in the universe, it will be remembered that maybe they have twenty thousand million people.

The Sea Arrow

Initially, we have to take into account the amount of sand in the sea all over the world.

Therefore, the length, width, and depth of the sea surface must be measured.

That is why the coast of the sea will not be calculated, the calculation of the coastal area will be calculated.

However, experts can not agree on this, because the coastal area increases in size, it does not remain stable.

Yet the BBC has spoken to one who gave a number.

The coast of the whole of the world.

Delta's researcher, Genadi Donetsets, who is doing research on the coast, says that one of the most difficult tasks to measure the coast of the whole of the world.

Computer data using free maps like open stream maps shows the coastal area's length of about 1.1 million kilometers, including the snow-covered areas.

Out of which three lakh km area sandy beaches

Now, if compared to the number of stars, it can be seen, that the number of stars in the universe is 10 sextillion, where the number of sand will be four sextillions.

Then it is true that the number of stars in the universe is more than the grain sand than the sand.

Data source: BBC Bangla