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Pan is the innermost named moon of Saturn. [4] It is approximately 35 kilometres across and 23 km wide and orbits within the Encke Gap in Saturn's A Ring. Pan is a ring shepherd and is responsible for keeping the Encke Gap free of ring particles. It is sometimes described as having the appearance of a walnut, or raviolo. [5]
Methone / m ɛ ˈ θ oʊ n iː / is a small, egg-shaped natural satellite of Saturn that orbits out past Saturn's ring system, between the orbits of Mimas and Enceladus.It was discovered in 2004, though it was not until 2012 that it was imaged in detail by the Cassini spacecraft.
The system around Neptune consists of five principal rings that, at their densest, are comparable to the low-density regions of Saturn's rings. However, they are faint and dusty, much more similar in structure to those of Jupiter. The very dark material that makes up the rings is likely organics processed by radiation, like in the rings of Uranus.
Half a billion years ago our world was a lot gaudier, according to a new study.
The Saturn-like feature could explain a climate shift at the time. Earth may have had a ring made up of a broken asteroid over 400 million years ago, a study finds. The Saturn-like feature could ...
In contrast, a moonlet is only massive enough to clear two small—about 10 km across—partial gaps in the immediate vicinity of the moonlet itself creating a structure shaped like an airplane propeller. [49] The moonlets themselves are tiny, ranging from about 40 to 500 meters in diameter, and are too small to be seen directly. [4]
The moon was named in 2006 after Daphnis, a shepherd, pipes player, and pastoral poet in Greek mythology; [8] he was descendant of the Titans, after whom the largest moons of Saturn are named. Both Daphnis and Pan, the only other known shepherd moon to orbit within Saturn's main rings, are named for mythological figures associated with shepherds.
The Saturn Nebula (also known as NGC 7009 or Caldwell 55) is a planetary nebula in the constellation Aquarius. It appears as a greenish-yellowish hue in a small amateur telescope . It was discovered by William Herschel on September 7, 1782, using a telescope of his own design in the garden at his home in Datchet , England , and was one of his ...