Which star is the brightest? Detailed answer

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Which star is the brightest? Detailed answer

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Which star is the brightest?

Have you tried to find the brightest star in the sky?

You probably think that there are a myriad of stars in the sky. But without a telescope, you can see no more than 6000 stars, of which about 1500 are in the Southern Hemisphere and are not visible in the Northern Hemisphere.

Even 2000 years ago, Greek astronomers divided the stars into magnitudes or classes depending on their brightness. Before the advent of the telescope, there were six classes, or magnitudes, of stars. Stars of the first magnitude are the brightest, while those of the sixth magnitude are the faintest. Stars below the sixth magnitude are not observed without a telescope. Today, modern telescopes can photograph stars of magnitude 21.

The brightness of stars of the same magnitude is two and a half times lower than the brightness of stars of the previous magnitude. The first magnitude includes 22 stars, the brightest of them is Sirius, which has a magnitude of 1 6. Sirius is more than 1000 times brighter than any of the faintest stars that can be observed with the naked eye.

The lower the class, or magnitude, the more stars it has. So, if we attribute only 22 stars to the first magnitude, then there are about a billion stars of the 20th class.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

Why were censuses in the Russian Empire called audits?

In 1718, by decree of Peter I, a population census began in Russia. The lists of peasants were to be submitted by the landowners themselves. Several years passed, and the landowners did not submit information. Those of the nobles who introduced them, as it turned out, did not show in them all the peasants they owned. Threats of death penalty and confiscation of hidden souls did not have the expected impact.

In 1721, the "last decree" was published - "so that those who fell into that concealment in error could all be corrected" and report about the concealment until September 1. The landowners did not want to take advantage of the postponement and amnesty. Then the tsar instructed specially created offices, staffed by officers, to double-check the statements submitted by the landowners.

Since that time, the name "revision" (from Latin - revision) has been established behind the censuses. By the way, the offices then discovered the concealment of one million male souls.

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