时隔一年多后，这颗矮行星又要冲日了

Core Viewpoint - Ceres, the smallest dwarf planet in the solar system, will reach opposition on October 8, providing an excellent opportunity for observation [1][3] Group 1: Ceres Characteristics - Ceres is classified as a dwarf planet and is the only one located in the asteroid belt between Mars and Jupiter [1] - It was the first asteroid discovered by humans and has a diameter of approximately 940 kilometers [1] - Ceres has an orbital period of 4.6 years and an opposition cycle of about 467 days [3] Group 2: Observation Details - During opposition, Ceres will be fully illuminated by the Sun, making it appear at its brightest, with a magnitude of 7.6 [3] - The best time for observation is shortly after sunset, as Ceres will rise in the eastern horizon and remain visible throughout the night until sunrise [3] - Observers are advised to choose locations with minimal light pollution, such as rural or suburban areas, and to use binoculars or small telescopes for better visibility [5]