Dinkinesh月光
(原标题: Dinkinesh Moonrise)
2023-11-04
浏览次数: 18
上周三，航行中的“露西”号宇宙飞船遇到了它的第一颗小行星152830 Dinkinesh，并发现这颗内主带小行星有一颗卫星。从400多公里的距离上，“露西”号的远程侦察成像仪以每秒4.5公里（约每小时1万英里）的速度飞越时捕捉到了这张双星系统的特写。Dinkinesh是一个奇妙的世界，它本身很小，最宽的地方还不到800米（约0.5英里）。从航天器的角度来看，它的卫星从主要小行星的后面出现。据估计，这颗小行星卫星只有大约220米宽。
查看原文解释
Last Wednesday the voyaging Lucy spacecraft encountered its first asteroid, 152830 Dinkinesh, and discovered the inner-main belt asteroid has a moon. From a distance of just over 400 kilometers, Lucy's Long-Range Reconnaissance Imager captured this close-up of the binary system during a flyby at 4.5 kilometer per second or around 10,000 miles per hour. A marvelous world, Dinkinesh itself is small, less than 800 meters (about 0.5 miles) across at its widest. Its satellite is seen from the spacecraft's perspective to emerge from behind the primary asteroid. The asteroid moon is estimated to be only about 220 meters wide.