Having planetary rings visible in the sky would look way more spectacular than just one grey rock, right?
仰望空中的行星环会比看到一块灰暗的石头更壮观，对吗？
Planetary rings
原声例句
假如有如果
中文百科
行星环 Ring system
（重定向自Planetary rings）
![土星的F环和牧羊犬卫星普罗米修斯和潘朵拉。](/Images/godic/202502/03/PIA07712_-_F_ring_animation2129.gif")
![伽利略号 的木星主环影像。](/Images/godic/202502/03/Main_Ring_Galeleo_forward_PIA005382129.jpg")
![卡西尼号 的土星环马赛克影像。](/Images/godic/202502/03/Saturn's_rings_dark_side_mosaic2129.jpg")
![航海家2号的天王星环影像。](/Images/godic/202502/03/FDS_26852.19_Rings_of_Uranus2129.png")
行星环是指围绕着行星运转的宇宙尘和小颗粒形成扁平盘状的区域。最广为人知的行星环就是围绕着土星的土星环，但是太阳系的其他三颗气体巨星（木星、天王星和海王星）也都有自己的行星环。
最近的报告 认为土星的卫星丽亚可能也有自己的环系统，它可能成为唯一拥有自己的环系统的卫星。
英语百科
Ring system (astronomy) 行星环
（重定向自Planetary rings）
![The moons Prometheus (right) and Pandora orbit just inside and outside the F ring of Saturn, but only Prometheus is believed to function as a ring shepherd.](/Images/godic/202502/03/-PIA07712_-_F_ring_animation_videoquality_6_framerate_5.ogv2130.jpg")
2130.jpg")
![A Galileo image of Jupiter's main ring.](/Images/godic/202502/03/Main_Ring_Galeleo_forward_PIA005382130.jpg")
![A Cassini mosaic of Saturn's rings.](/Images/godic/202502/03/Saturn's_rings_dark_side_mosaic2130.jpg")
A ring system is a disc or ring orbiting an astronomical object that is composed of solid material such as dust and moonlets, and is a common component of satellite systems around giant planets. A ring system around a planet is also known as a planetary ring system.
- interlocutory proceeding
- interlocutory writ
- interlocutress
- interlocutrice
- interlocutrices
- interlocutrix
- Interlon
- Interlong
- interlooking tile
- interloop
- interloop abscess
- interlopation
- interloper
- interlope
- interlopings
- interlot
- interlucate
- interlucation
- interlucent
- interlucidation
- interlude
- interluder
- interluders
- interludial
- interludium