2024年发现的小行星2025 PN7是一颗无害的、临时的、准地球卫星,预期在2083年之前将留在近轨道上。
Asteroid 2025 PN7, discovered in 2024, is a harmless, temporary quasi-satellite of Earth expected to remain in near-orbit until 2083.
地球有一个新的临时天体伴星,即小行星2025 PN7,这是Pan-STARRS调查于2024年8月发现的准卫星。
Earth has a new temporary celestial companion, asteroid 2025 PN7, a quasi-satellite discovered in August 2024 by the Pan-STARRS survey.
它的直径为18至36米, 绕太阳旋转,
Measuring 18 to 36 meters across, it orbits the Sun in near-resonance with Earth, appearing to circle our planet without being gravitationally bound.
美国航天局证实,美国航天局至少自1960年代以来就一直处于这种准轨道模式,并将在地球附近停留到2083年左右。
NASA confirms it has been in this quasi-orbital pattern since at least the 1960s and will remain near Earth until around 2083.
虽然对裸眼望远镜或业余望远镜的观看来说太微弱了,但对研究轨道动力学和太阳系小型物体没有威胁,也具有科学价值。
Though too faint for naked-eye or amateur telescope viewing, it poses no threat and offers scientific value for studying orbital dynamics and small solar system bodies.