A dusty ringlet designated R/2006 S3, also known as the “Charming Ringlet,” is located around 119,940 km from the center of Saturn within the Laplace Gap in the Cassini Division. Prior to 2010, the ringlet had a simple radial profile and a predictable eccentric shape with two components, one forced by solar radiation pressure and the other freely precessing around the planet. However, observations made by the Cassini spacecraft since late 2012 revealed a shelf of material extending inwards from the ringlet that was not present in the earlier observations. Closer inspection of images obtained after 2012 shows that sometime between 2010 and 2012, the freely precessing component of the ringlet’s eccentricity increased by over 50%, and that for at least 3 yr after 2012, the ringlet had longitudinal brightness variations that rotated around the planet at a range of rates corresponding to ∼60 km in orbital semimajor axis. Some event therefore disturbed this ringlet between 2010 and la...

中文翻译：

---

2010年后卡西尼分部的尘土飞扬Ring状环的变化

一个尘土飞扬的小环，命名为R / 2006 S3，也称为“迷人小环”，位于卡西尼省拉普拉斯峡中距土星中心约119,940公里。在2010年之前，该小环具有简单的径向轮廓和可预测的偏心形状，其中有两个分量，一个分量受到太阳辐射压力的推动，另一个分量绕行星自由进动。然而，自2012年底以来，卡西尼号飞船进行的观测显示，从小环向内延伸的材料层没有早先的观测结果。对2012年后获得的图像进行仔细检查后发现，在2010年至2012年之间的某个时间段，小环的偏心率的自由进动部分增加了50％以上，2012年之后至少持续了3年，这枚小环的纵向亮度变化围绕行星旋转，其旋转速率范围相当于轨道半长轴的〜60 km。因此，2010年至2020年之间，一些事件扰乱了这枚戒指。