In March Science published an article entitled “An Evolving View of Saturn’s Dynamic Rings,” “reviewing our understanding of Saturn’s rings after nearly 6 years of observations by the Cassini spacecraft.” The report was summarized in Astronomy, “Six Years In, Cassini Provides Insights into Saturn's Rings, with More to Come.”
Comprehensive works about Saturn and its moons and rings are classed in 523.46 Saturn. At 523.4 Planets, asteroids, trans-Neptunian objects of solar system is the class-here note: “Class here comprehensive works on planets, satellites, rings of solar system”; that note has hierarchical force. Examples of works classed in 523.46 are Saturn: A New View and A Look at Saturn.
At 523.4 Planets, asteroids, trans-Neptunian objects of solar system is the see reference: “For satellites and rings, see 523.98”; that note has hierarchical force. At 523.98 Satellites and rings is the note: “Variant name for satellites: moons.” Works about Saturn’s moons and rings are classed in 523.986 Satellites and rings of Saturn (built with 523.98 Satellites and rings plus 6 from 523.46 Saturn, following instructions at 523.98). At 523.98 is the note “Subdivisions are added for either or both topics in heading.” Examples of works classed in 523.986 are Titan Unveiled: Saturn's Mysterious Moon Explored and On the Relevance of Particle Adhesion: Applications to Saturn's Rings.