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| image = 225088 Gonggong and Xiangliu by Hubble (clean).png | discoverer = {{ubl|[[Megan Schwamb]]|[[Michael E. Brown]]|[[David L. Rabinowitz]]}} ...

This asteroid was discovered on 3 August 1998, by the [[Lowell Observatory Near-Earth-Object Search]] (LONEOS) at [[Anderson ...[[Palomar Observatory]] in 1978, extending the body's [[observation arc]] by 20 years prior to its official discovery observation at Anderson Mesa.<ref ...

| caption = Vanth (smaller object) orbiting Orcus, imaged by the [[Hubble Space Telescope]]. ...orrect units, dividing Vanth's estimated mass of {{val|8.7|0.8|e=19|u=kg}} by the spherical volume of the occultation-derived diameter gives a density of ...

...ngle#Combining angle pairs|complement]] of {{mvar|β}}, which is expressed by the difference {{nobr| {{mvar|i}} {{=}} 90° – {{mvar|β}}}}. Thus, the axial ...ll amount of [[methane]] is present on its surface, which is only retained by the largest Kuiper belt objects. ...