Astronomy says there are 13 constellations, right? Does Ophiuchus exist?

Astronomical theory has 24 constellations.

We are talking about defining the month of our birth with the constellation 12.

A constellation.

All-sky astronomy has 88 constellations. Among them, 48 constellations formulated by Ptolemy and 40 constellations of modern astronomy. These constellations include lion, Taurus, snake man, dragon, triangle, easel, whale and so on.

Generally speaking, 12 constellation refers to the zodiac signs. That is, the constellation through which the sun runs during the day.

Because the starry sky is not static, Ophiuchus, which originally did not belong to the zodiac, has also entered the zodiac with the passage of time, so in a correct sense, Ophiuchus is indeed the zodiac, but people still think that the zodiac has 12 constellations!