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An artist's impression of Rhea's rings. The density of the particles is exaggerated greatly to aid visibility. [1] Rhea, the second-largest moon of Saturn, may have a tenuous ring system consisting of three narrow, relatively dense bands within a particulate disk. This would be the first discovery of rings around a moon.
It is estimated that the A Ring contains 7,000–8,000 propellers larger than 0.8 km in size and millions larger than 0.25 km. [4] In April 2014, NASA scientists reported the possible consolidation of a new moon within the A Ring, implying that Saturn's present moons may have formed in a similar process in the past when Saturn's ring system was ...
The actual semi-major axis differs by 19 km, and the actual mass is 8.6 × 10 −12 of Saturn's. The moon was later found within 1° of the predicted position. The search was undertaken by considering all Voyager 2 images and using a computer calculation to predict whether the moon would be visible under sufficiently favorable conditions in ...
Anthe / ˈ æ n θ iː / is a very small natural satellite of Saturn lying between the orbits of Mimas and Enceladus. It is also known as Saturn XLIX; its provisional designation was S/2007 S 4. It is named after one of the Alkyonides; the name means flowery. It is the sixtieth confirmed moon of Saturn. [5]
Coloured circles along the path mark the dates and locations at which the moon was observed. S/2019 S 1 is about 5 kilometres in diameter, and orbits Saturn at an average distance of 11.2 million km (7.0 million mi) in 443.78 days, at an inclination of 44° to the ecliptic, in a prograde direction and with an eccentricity of 0.623. [ 1 ]
The discovery images were taken by the Cassini probe over 16 min on May 1, 2005, from a time-lapse sequence of 0.180 second narrow-angle-camera exposures of the outer edge of the A ring. The moon was subsequently found in 32 low-phase images taken of the F ring on April 13, 2005 (spanning 18 min) and again in two high-resolution (3.54 km/pixel ...
There are 293 confirmed moons in our cosmic neighborhood. By studying these worlds, astronomers hope to learn about ancient asteroid collisions, space volcanoes, and the origins of life itself.
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.