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The rings of Saturn are the most extensive and complex ring system of any planet in the Solar System. They consist of countless small particles, ranging in size from micrometers to meters, [ 1] that orbit around Saturn. The ring particles are made almost entirely of water ice, with a trace component of rocky material.
The Phoebe ring is one of the rings of Saturn. This ring is tilted 27 degrees from Saturn's equatorial plane (and the other rings). It extends from at least 128 to 207 [20] times the radius of Saturn; Phoebe orbits the planet at an average distance of 215 Saturn radii. The ring is about 40 times as thick as the diameter of the planet. [21]
A ring system is a disc or torus orbiting an astronomical object that is composed of solid material such as gas, dust, meteoroids, planetoids or moonlets and stellar objects. Ring systems are best known as planetary rings, common components of satellite systems around giant planets such as of Saturn, or circumplanetary disks.
These exposures test Webb’s ability to spot faint moons around the planet and its rings, since any newly discovered moons could help scientists better understand Saturn’s present and past systems.
Contents. Janus (moon) "Saturn X" redirects here. For the spurious moon reported in 1905, see Themis (hypothetical moon). Janus / ˈdʒeɪnəs / is an inner satellite of Saturn. It is also known as Saturn X. It is named after the mythological Janus. This natural satellite was first identified by Audouin Dollfus on December 15, 1966, although it ...
Mimas imaged by the Cassini orbiter, February 2010. Mimas's surface is dominated by craters; the large crater at the right is Herschel. Mimas, also designated Saturn I, is the seventh-largest natural satellite of Saturn. With a mean diameter of 396.4 kilometres or 246.3 miles, Mimas is the smallest astronomical body known to be roughly rounded ...
Equatorial ridge. Equatorial ridges are a feature of at least three of Saturn 's moons: the large moon Iapetus and the tiny moons Atlas and Pan. They are ridges that closely follow the moons' equators. They appear to be unique to the Saturnian system, but it is uncertain whether the occurrences are related or a coincidence.
J1407b is a substellar object, likely unbound to any star, with a dusty circumplanetary disk or massive ring system.It was first detected by telescopes of the Super Wide Angle Search for Planets (SuperWASP) and All Sky Automated Survey (ASAS) projects in April–June 2007, when J1407b's disk eclipsed the star V1400 Centauri and caused it to undergo a series of dimming events for 56 days.