Which constellation does the zodiac not include?

The ecliptic is an astrological term, which means "the ecliptic is divided into twelve equal parts". Astronomically speaking, it is the zodiac: if we start from the constellation where the vernal equinox was located two thousand years ago, then it is Aries, Taurus, Gemini, Cancer, Leo, Virgo (astronomical standard Chinese translation), Libra (Cheng), Scorpio and Sagittarius (Virgo) in turn. Others such as Orion and Ursa major are not zodiac signs.