What is the 13 constellation?

Ophiuchus is one of the zodiac signs. Seen from the earth, Ophiuchus is located to the south of Ursa major, to the north of Scorpio and Sagittarius, and to the west of the Milky Way. Ophiuchus is the only constellation connected with another constellation-Ophiuchus. At the same time, Ophiuchus is the only constellation that spans the celestial equator, the Milky Way and the ecliptic. Ophiuchus is big and wide, rectangular, and the equator of the celestial sphere passes through this rectangle diagonally. Although Ophiuchus spans a short galaxy, the center of the Milky Way is Sagittarius, not far from Ophiuchus. The Milky Way has a prominent part here, forming the widest area of the Milky Way. Latitude variation lies in+80 and? You can see it between 80.

Declination: 0, right ascension: 17h. Every year around165438+1October 29th, the sun will pass through Ophiuchus and enter Sagittarius until 65438+February17th, so Ophiuchus is recognized as one of the thirteen constellations of the ecliptic in astronomy at the International Astronomical Congress of the International Astronomical Union from 65438 to 0928. Even so, Ophiuchus does not belong to one of the twelve constellations in astrology. The difference between Ophiuchus and astronomy and astrology has always been an old topic of debate among astrologers. In addition, Scorpio has no solar terms on the ecliptic, but Ophiuchus has solar terms and heavy snow.