What is a Y-sign?

One of the zodiac signs. Located in the south of Pegasus and Pisces, and the north of Pisces. The location is generally in the center of the triangle composed of Altair, Beiluoshimen and Pegasus quadrilateral. Because there are not many bright stars, the image depicted is also very unclear. The main feature of Aquarius is that in the south of the head of Pegasus, there are four fourth-order stars forming a "Y" shape, like an "Aquarius" shape. From the south and southeast of the bottle mouth, there are two rows of flashing dark stars, which are the nectar poured from the Aquarius, and these nectar finally flow southward into the mouth of Pisces. Nanyukou first-class star is just 1. Every year from February 18 to March 12, the sun runs in this constellation, and the two solar terms are in Aquarius. There is a planetary nebula in the constellation. It can be seen with a telescope that its shape is very similar to Saturn, so it is also called "ngc 7009". Aquarius has two meteors: one appears before dawn in early May and the other in late July.

It is said that the gods of Olympus often hold grand banquets in Zeus Palace. During the dinner, the busiest one was Princess Herb, who was carrying a vase to add nectar to the gods. Later, she got married, and Zeus wanted to find a suitable person on earth to replace his daughter Herb. So Zeus turned into an eagle and came to earth to bring back the beautiful boy Cheney Medus, instead of his daughter, to pour wine for the gods in the palace on Mount Olympus. This is Aquarius shining in the stars.

Learning point

zodiacal constellations

The earth revolves around the sun once a year. When the earth rotates, the sun can be seen from the earth. The sun moves slowly on the celestial sphere and among the stars, in the same direction as the revolution of the earth, and it also moves in a big circle every year, which is called solar annual apparent movement. The path of the sun's annual apparent motion on the celestial sphere is the ecliptic. The ecliptic passes through 13 of the 88 constellations. Except for a small number of Ophiuchus, the other 12 are Pisces, Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn and Aquarius, which are collectively called the twelve constellations of the ecliptic.