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- Plutoid abstract "A plutoid or ice dwarf is a trans-Neptunian dwarf planet: that is a body orbiting beyond Neptune that is large enough to be rounded in shape. The term plutoid was adopted by the International Astronomical Union (IAU) working group Committee on Small Bodies Nomenclature, but was rejected by the IAU working group Planetary System Nomenclature. The term plutoid is not widely used by astronomers, though ice dwarf is not uncommon.There are thought to be thousands of plutoids in the Solar System, although only four have been formally designated as such by the IAU. The IAU developed this category of astronomical objects as a consequence of its 2006 resolution defining the word "planet". The IAU's formal definition of "plutoid", announced 11 June 2008, is:Plutoids are celestial bodies in orbit around the Sun at a semi-major axis greater than that of Neptune that have sufficient mass for their self-gravity to overcome rigid body forces so that they assume a hydrostatic equilibrium (near-spherical) shape, and that have not cleared the neighbourhood around their orbit. Satellites of plutoids are not plutoids themselves.Accordingly, in the language of mathematical set theory, plutoids can be thought of as the intersection of the set of dwarf planets and the set of trans-Neptunian objects.In light of the difficulty of remotely ascertaining hydrostasis, the IAU only formally confers "dwarf planet" (and by extension, "plutoid") status to those bodies whose minimum estimated size is substantially greater than what is generally thought necessary to guarantee hydrostatic equilibrium. As of 2009, Pluto, Eris, Haumea, and Makemake are the only objects officially recognized as plutoids, while upwards of seventy more bodies that currently lack formal recognition are thought likely to meet the definition, and can expect formal recognition at some time in the future.Alan Stern of the Southwest Research Institute believes the outer planets show signs of collisions with plutoids 1,000 to 2,000 kilometers in diameter: Uranus could have been tipped off its axis by a plutoid, and Triton, the largest moon of Neptune, is probably a captured plutoid from the Kuiper belt.".
- Plutoid thumbnail Masses_of_the_plutoids.png?width=300.
- Plutoid wikiPageID "6670074".
- Plutoid wikiPageRevisionID "606343176".
- Plutoid align "right".
- Plutoid caption "Comparative masses of the largest plutoids, plus Charon. Eris and Pluto dominate.".
- Plutoid caption "Data as of 2011; values of Makemake, 2007 OR10, and Sedna are approximate.".
- Plutoid caption "The masses of the same bodies compared to the Moon .".
- Plutoid direction "vertical".
- Plutoid hasPhotoCollection Plutoid.
- Plutoid image "Masses of the plutoids.png".
- Plutoid image "Plutoids compared to Luna.png".
- Plutoid width "350".
- Plutoid subject Category:Dwarf_planets.
- Plutoid subject Category:Plutoids.
- Plutoid subject Category:Trans-Neptunian_objects.
- Plutoid type CelestialBody109239740.
- Plutoid type DwarfPlanets.
- Plutoid type NaturalObject100019128.
- Plutoid type Object100002684.
- Plutoid type PhysicalEntity100001930.
- Plutoid type Planet109394007.
- Plutoid type Whole100003553.
- Plutoid comment "A plutoid or ice dwarf is a trans-Neptunian dwarf planet: that is a body orbiting beyond Neptune that is large enough to be rounded in shape. The term plutoid was adopted by the International Astronomical Union (IAU) working group Committee on Small Bodies Nomenclature, but was rejected by the IAU working group Planetary System Nomenclature.".
- Plutoid label "Plutoid".
- Plutoid label "Plutoid".
- Plutoid label "Plutoid".
- Plutoid label "Plutoide".
- Plutoid label "Plutoide".
- Plutoid label "Plutoide".
- Plutoid label "Plutoïde".
- Plutoid label "Plutoïde".
- Plutoid label "Плутоид".
- Plutoid label "بلوتي".
- Plutoid label "冥王星型天体".
- Plutoid label "類冥矮行星".
- Plutoid sameAs Plutoid.
- Plutoid sameAs Plutoid.
- Plutoid sameAs Plutoide.
- Plutoid sameAs Plutoïde.
- Plutoid sameAs Plutoide.
- Plutoid sameAs 冥王星型天体.
- Plutoid sameAs Plutoïde.
- Plutoid sameAs Plutoid.
- Plutoid sameAs Plutoide.
- Plutoid sameAs m.0ggr_x.
- Plutoid sameAs Q131731.
- Plutoid sameAs Q131731.
- Plutoid sameAs Plutoid.
- Plutoid wasDerivedFrom Plutoid?oldid=606343176.
- Plutoid depiction Masses_of_the_plutoids.png.
- Plutoid isPrimaryTopicOf Plutoid.
