黄道 (Huángdào), or the ecliptic, is the apparent path of the Sun across the sky as observed from Earth. It represents the plane of the Earth's orbit around the Sun and is crucial in astronomy for understanding the positions of celestial bodies. The ecliptic is divided into twelve sections, each corresponding to a zodiac sign. In addition to its astronomical significance, the 黄道 is important in astrology, where it is believed to influence personality traits and life events based on the position of the Sun and other planets at the time of a person's birth. This connection between the ecliptic and astrology has made it a central concept in both fields.