What is the ecliptic? What is the zodiac? What constellations do Altair and Vega belong to? How far are Altair and Vega from the earth?

Zodiac: The annual apparent motion track of the sun on the celestial sphere is the great circle of the sun's apparent path in the sky, and it is also the projection of the earth's orbital plane on the celestial sphere.

Zodiac: The sun rotates once a year on the celestial sphere along the ecliptic. In order to determine the position, people divide the ecliptic into twelve equal parts (each part is equivalent to 30 parts), and each part is named after an adjacent constellation. These constellations are called the zodiac or the zodiac. This is equivalent to dividing a year into twelve segments, in which the sun enters a constellation. In the west, when a person is born, which constellation the sun is going to, he is said to belong to this constellation.

Altair: an eagle; Distance to Earth 16.7 light years.

Vega: belongs to Lyra; 26 light years away from the earth.

(Is it complete enough ...)