How many stars are there in universe?


Sky looks so beautiful in the night with the twinkling stars but have you ever tried to count these stars. This question is really challenging for philosophers, scientists, astronomers, dreamers etc.

These stars present in the space are not randomly scattered but they occur together in huge groups which are called galaxies. It is estimated by the scientists that there are more than thousand million stars only in our galaxy i.e. Milky Way. Sun is also a huge star of Milky Way galaxy. Other than Milky Way there are millions and millions of galaxies and stars.

Counting stars in the sky is same as counting the number of sand grains on earth. We can get average measurement by knowing the area and depth of sand like it has been calculated that there are nearly 1000,000,000,00 to 1000,000,000,000 stars in one galaxy and nearly 1000,000,000,00 to 1000,000,000,000 galaxies in the universe. So in the same way number of stars will be the multiplication of number of stars in one galaxy multiplied by number of galaxies. The above given number of galaxies and stars are approximate. It can differ from the galaxy to galaxy.

ESA’s infrared space observatory Haschel will make an attempt by counting the galaxies through infrared measuring and their luminosity in their range.

It is difficult rather impossible to count the stars one by one so it is believed that there 1000,000,000,000,000,000,000 stars in the universe which is a very huge figure.

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