How many constellations _ How many constellations are there?

There are 88 constellations.

1928 The International Astronomical Union officially announced 88 constellations commonly used in the world. According to the different positions of 88 constellations on the celestial sphere and the appearance of stars, they are divided into five major regions, namely, the Northern Celestial Constellation (5), the Northern Celestial Constellation (19), the Twelve Constellations (12 near the ecliptic on the celestial sphere), the Zodiac Constellation (10) and the Southern Celestial Constellation (/).

In the 2nd century A.D., Ptolemy, an ancient Greek astronomer, synthesized the astronomical achievements at that time and sorted out 48 constellations. Connect the main bright stars in the constellation with imaginary lines, imagine them as images of animals or characters, and give them appropriate names in combination with fairy tales. This is the origin of the constellation name. Most of the 48 constellations in Greek mythology live in the northern sky and north and south of the equator.

Extended data:

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

Polaris (19): Scorpio, Andromeda, Lubao, Auriga, Canis major, Foxes, Cygnus minor, Perseus, Shepherd, Five Immortals, Houpai, Beiguan, Tmall, Lyra, Dolphin, Pegasus and 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).

References:

Baidu encyclopedia _ constellation