3rd moon
The celestial body that revolves around the earth is known as the "moon".
In addition to the moon, there may also be passing small celestial bodies that are pulled by the earth's gravity and leave after orbiting the earth for some while.
This small celestial body temporarily orbiting the earth,
It is called "mini moon" or "little moon".
British scientists published an article in the "Journal of Astronomy" on the 24th and pointed out that they discovered an asteroid orbiting the earth for nearly three years. This is the second "mini moon" discovered and named "2020 CD3".
The research team pointed out in the Astronomical Journal that the diameter of the “2020 CD3” is about 1.9 to 3.5 meters.
In addition, the speed of "2020 CD3" is slower, it only spins once in about 3 minutes.
第3颗月球
围绕地球运转的天体,众所周知的为"月球".
除了月球之外,亦可能有过路的小天体被地球引力所牵引,于围绕着地球轨道运行一阵子之后才离去,
这种暂时围绕着地球运转的小天体,
被称之为"迷你月球"或者"小月亮"。
英国科学家24日在"天文学期刊"发表文章指出，他们发现一颗围绕地球运转近3年的小行星，这是第二颗被发现的"迷你月球",被命名为「2020 CD3」。
研究团队在《天文学期刊》（Astronomical Journal）指出,「2020 CD3」的直径约为1.9至3.5公尺.
此外「2020 CD3」转速较慢,约3分钟才旋转一次。
