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...x|right|thumb|The scheme of Neptune's ring-moon system. Solid lines denote rings; dashed lines denote orbits of moons.]] ...unian moon [[Galatea (moon)|Galatea]]. Three other moons orbit between the rings: [[Naiad (moon)|Naiad]], [[Thalassa (moon)|Thalassa]] and [[Despina (moon)| ...

...r the past 25 years.<ref name=Meier1999/> Ground-based observations of the rings require the largest available [[telescopes]].<ref name=dePater1999/> ...eptionally thin "main ring"; and two wide, thick and faint outer "gossamer rings", named for the moons of whose material they are composed: [[Amalthea (moon ...

...J2000]] epoch. Barycentre quantities are given because, in contrast to the planetary centre, they do not experience appreciable changes on a day-to-day basis fr | url = http://nssdc.gsfc.nasa.gov/planetary/factsheet/neptunefact.html ...

...1734/> Originally applied only to our own [[Solar System]], this method of planetary system formation is now thought to be at work throughout the [[universe]].< ...in certain circumstances, which are not well known. Thus the formation of planetary systems is thought to be a natural result of star formation. A sun-like sta ...

...tific disciplines including [[astronomy]], [[physics]], [[geology]], and [[planetary science]]. Since the dawn of the [[space age]] in the 1950s and the discove ...often shifted, and planets have switched places.<ref name="Gomes"/> This [[planetary migration]] now is believed to have been responsible for much of the Solar ...

...name="greatest"/> she revolutionized the theories of [[ring (mathematics)|rings]], [[field (mathematics)|fields]], and [[algebra over a field|algebras]]. I ...idealsatz'']] and his [[Krull dimension|dimension theory]] for commutative rings.<ref>{{Harvnb|Dick|1981|pp=53–57}}.</ref> ...

...rticle is about the Sun and its planetary system. For other systems, see [[Planetary system]] and [[Star system]]. For a list of the physical attributes of the ...moons" after Earth's [[Moon]]. Each of the outer planets is encircled by [[planetary ring]]s of dust and other particles. ...

...ileo]]'' spacecraft revealed that Callisto may have a small [[silicate]] [[Planetary core|core]] and possibly a subsurface ocean of liquid water at depths great ...nup2002/> Its slowness and the lack of [[tidal]] heating prevented rapid [[planetary differentiation|differentiation]]. The slow [[convection]] in the interior ...

| accessdate=2006-08-04 }}</ref> The [[diffraction spikes]] and concentric rings are [[Point spread function|instrumental effects]].]] | work=Twelve Year Planetary Ephemeris: 1995-2006, NASA Reference Publication 1349 ...

...d the ecliptic ring, and finally Zhang Heng added the horizon and meridian rings.<ref name="crespigny 2007 1050"/><ref name="needham 1986 volume 3 343"/> Zh ...ng Heng in his turn had composed this arrangement by uniting the armillary rings of his predecessors into the equatorial armillary sphere, and combining it ...

...arged electrons were distributed throughout the atom, possibly rotating in rings, with their charge balanced by the presence of a uniform sea of positive ch ...Spectral line|spectral]] patterns of atoms larger than hydrogen. Thus, the planetary model of the atom was discarded in favor of one that described [[atomic orb ...

...rning orbiting bodies. It predicts an overall rotation ([[precession]]) of planetary orbits, as well as orbital decay caused by the emission of gravitational wa ...[[Earth]]),<ref>The most precise measurements are [[VLBI]] measurements of planetary positions; see {{Harvnb|Will|1993|loc=chapter 5}}, {{Harvnb|Will|2006|loc=s ...