遥远太阳系内“隐身居民”或是一颗矮行星

Core Insights - A team of Chinese researchers from Princeton University has discovered a new celestial body in the outer solar system, which is likely a dwarf planet [1][2] - The discovery challenges the existence of the hypothesized ninth planet due to the stability of the newly found object [2] Group 1: Discovery Details - The newly identified celestial body is named 2017 OF201, with a diameter of approximately 700 kilometers [2] - It orbits the Sun in a highly elliptical path, taking about 24,000 years to complete one orbit, with its aphelion exceeding 1,600 astronomical units [2] - The discovery was driven by a desire to find a large and distant object, following a hypothesis about the existence of a ninth planet [1][2] Group 2: Implications of the Discovery - The existence of 2017 OF201 raises questions about the stability of the hypothesized ninth planet, as it should have been ejected from its orbit if the ninth planet were present [2] - The researchers' findings suggest that if 2017 OF201 remains in its current orbit, it indirectly indicates that the ninth planet may not exist [2] - The discovery is significant as it represents the farthest celestial body identified by Chinese researchers in the solar system [3]