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The mass of Eris can be calculated with much greater precision. Based on the accepted value for Dysnomia's period at the time—15.774 days [ 23 ] [ 68 ] —Eris is 27% more massive than Pluto. Using the 2011 occultation results, Eris has a density of 2.52 ± 0.07 g/cm 3 , [ g ] substantially denser than Pluto, and thus must be composed largely ...
Parts-per-million chart of the relative mass distribution of the Solar System, each cubelet denoting 2 × 10 24 kg. This article includes a list of the most massive known objects of the Solar System and partial lists of smaller objects by observed mean radius. These lists can be sorted according to an object's radius and mass and, for the most ...
The largest known trans-Neptunian objects are Pluto and Eris, followed by Haumea, Makemake, Gonggong, Quaoar, Sedna, and Orcus, all of them being officially recognized as dwarf planets by the IAU except for Gonggong, Sedna, and Orcus.
Mass in M E, the unit of mass equal to that of Earth ( 5.97 × 10 24 kg). Λ is the capacity to clear the neighbourhood (greater than 1 for planets) by Stern & Levison (2002): [ 28 ] Λ = k m 2 a − + 3 / 2 , where k = 0.0043 for m in units of yottagrams (10 18 metric tons ) and a in astronomical units ( AU ), where a is the body's semi ...
Dysnomia (formally (136199) Eris I Dysnomia) is the only known moon of the dwarf planet Eris and is the second-largest known moon of a dwarf planet, after Pluto I Charon.It was discovered in September 2005 by Mike Brown and the Laser Guide Star Adaptive Optics (LGSAO) team at the W. M. Keck Observatory.
With new variant “Eris” EG.5.1 rising in the U.S. and globally, you may wonder what the future holds for COVID in the U.S., particularly this fall and winter.. As of Friday, another new player ...
The EG.5 or Eris subvariant is now the dominant COVID-19 strain circulating in the United States. What to know about symptoms, transmission, and prevention. ... 10 teens wounded in Queens mass ...
The number of dwarf planets in the Solar System is unknown. Estimates have run as high as 200 in the Kuiper belt [1] and over 10,000 in the region beyond. [2] However, consideration of the surprisingly low densities of many large trans-Neptunian objects, as well as spectroscopic analysis of their surfaces, suggests that the number of dwarf planets may be much lower, perhaps only nine among ...