What is the constellation of Liu Haoran?

The stars in Libra have been recognized since ancient times, but Ptolemy did not regard them as independent constellations. In Ptolemy constellation, the star of Libra belongs to Scorpio's claw, Libra α is Scorpio's north claw, Libra β is Scorpio's south claw.

People regard the stars as a steelyard, symbolizing fairness. However, it was not until Caesar's time in the 1 th century that the Romans discovered that the sun moved to this constellation just before and after the autumnal equinox, so they drew it independently.

Now, due to the precession of the earth, the autumnal equinox has moved to Virgo in the west. In the present era, the sun runs from 1 65438+1October1to165438+/October 23rd every year.