<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">planetary systems</topic></authority><related type="broader"><topic>astronomical concepts</topic></related><variant type="other"><topic>planetary system</topic></variant><variant type="other"><topic>systems, planetary</topic></variant> <note xml:lang="en"><![CDATA[ Assemblages of non-stellar objects that are gravitationally bound and orbiting a star or star system. Planetary systems may include one or more planets and other bodies, such as dwarf planets, moons, asteroids, meteoroids, comets, and cosmic dust. ]]></note></mads>