What constellation is March 18?

According to Baidu Encyclopedia, the date of birth in Gregorian calendar is Pisces from February to March 20th in 19, so we know that Pisces was born in March in Gregorian calendar 18.

Pisces is the zodiac sign, located east of Aquarius and west of Aries. The main stars are Jupiter and Neptune. The representative color is sea blue. This constellation has a messier objects: M74, which is located near the second right of the brightest star in Pisces. On the celestial sphere, there are two intersections between the ecliptic and the celestial equator. The intersection formed by the intersection of the ecliptic from the south of the celestial equator from west to east and the north of the celestial equator is called the "vernal equinox" in astronomy, which is of great significance in astronomy. Before, this important "spring equinox" was in Pisces. In the ancient tradition of China, the sky area of Pisces includes the thunderbolt star, the sex star and the rain star, the underground palace in the wall, the outer horizon star and the right Geng star in the building.