How are constellations counted?

The twelve constellations are arranged in order.

The twelve constellations we are talking about are actually the zodiac signs in western astrology. The ecliptic here is the "return to the ecliptic" calculated by the vernal equinox in western astrology, so the twelve constellations are also calculated by the constellations on the day of the vernal equinox.

Remembering the order of the twelve constellations is the first step to understand the constellations. The specific order of the twelve constellations is Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius and Capricorn.

At present, some horoscope books on the market rank Aquarius in the first constellation according to the date, which is wrong.