What are the constellations arranged in?

12 constellation order: Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius and Pisces.

The arrangement order of the twelve constellations is calculated according to the ecliptic, so the twelve constellations are also called "Zodiac". Divide the earth's ecliptic into twelve segments, each segment is 30 degrees, the first house is 0 to 30 degrees, and so on. This is the arrangement order of the twelve constellations.