How many constellations and stars are there in the sky?

Astronomers divide the stars in the sky into 88 constellations by region. Among them, there are 29 constellations in the northern sky (bounded by the celestial equator); There are 46 constellations in the southern sky and 13 constellations across the celestial equator. As long as we are patient, we can count the stars that can be seen by the naked eye after counting the stars in a constellation. According to the calculation results of astronomers, there are 6 stars of magnitude 0; 1 Isometric14; 46 second-class stars; 3 stars134; 458 4 stars; 5 stars1476; There are 4,840 6-level stars ... The total number of * * * does not exceed 7,000.

If we use binoculars, the situation will be different. Even with a small telescope, we can see more than 50,000 stars. The largest astronomical telescope in modern times can see more than 654.38 billion stars.

In fact, there are many more stars in the sky. The universe is endless, and what modern astronomers see is only a tiny part of it.

Constellations are artificially divided, that is, the celestial sphere is divided into 88 pieces, 44 pieces in the northern hemisphere and 44 pieces in the southern hemisphere. Most of the northern hemisphere is named after people or things in Greek mythology, while the southern hemisphere is named after animals or scientific instruments.