How many constellations are there in the universe?

Constellation refers to a group of similar stars projected on the celestial sphere. Different civilizations and historical periods may divide constellations differently. Most modern constellations evolved from the traditional constellations of ancient Greece, and the International Astronomical Union accurately divided the whole day into 88 constellations.

According to the different positions of the 88 constellations on the celestial sphere and the appearance of the stars, they are divided into five regions, namely, the Northern Celestial Constellation (5), the Polaris Constellation (40 ~ 90, 19), the Twelve Constellations (12 constellation near the ecliptic on the celestial sphere) and the Zodiac Constellation (19). The 88 constellations of the whole day are:

Northern Sky Constellation (5): Ursa minor (closest to the north celestial pole), Ursa major, Cassiopeia, Draco and Cepheus.

Polaris constellation (19): Scorpio, Andromeda, Lupo, Auriga, Canis major, Foxes, Cygnus minor, Perseus, Shepherd, Pentecost, Backrow, Corona Nordica, Tmall, Lyra, Dolphin, Pegasus, Triangle.

Zodiac (12): Cancer, Aries, Gemini, Aquarius, Virgo, Leo, Taurus, Pisces, Capricorn, Scorpio, Libra and Sagittarius.

Twelve constellations (10): Sagittarius, Canine, Eagle, Ophiuchus, Ophiuchus, Sextant, Ophiuchus, Unicorn, Orion and Whale.

Southern Constellations (42 in total): Temple of Heaven, Picture Frame, Fly, Mountain Case, Indian, Tian Yan, Flying Fish, Long Ruler, Swordfish, Clock, Rhododendron, Southern Triangle, Compass, Dragonfly, Telescope, Aquarius and Southern Cross (small constellation).