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Eris (minor-planet designation: 136199 Eris) is the most massive and second-largest known dwarf planet in the Solar System. [22] It is a trans-Neptunian object (TNO) in the scattered disk and has a high-eccentricity orbit. Eris was discovered in January 2005 by a Palomar Observatory–based team led by Mike Brown and verified later that year.
The last major TNO, Eris, was at first considered by him, his team, NASA, and many others to be the tenth planet, [4] but the International Astronomical Union assigned it to the new classificatory category of dwarf planet. The possible dwarf planets Trujillo discovered are: Quaoar, co-discovered with Brown; Sedna, co-discovered with Brown and ...
The radii of these objects range over three orders of magnitude, from planetary-mass objects like dwarf planets and some moons to the planets and the Sun. This list does not include small Solar System bodies , but it does include a sample of possible planetary-mass objects whose shapes have yet to be determined.
Dwarf planet Eris, similar in size to its better-known cosmic cousin Pluto, has remained an enigma since being discovered in 2005 lurking in the solar system's far reaches. While Pluto was ...
Download as PDF; Printable version; ... dwarf planets and dates of discovery. Ceres (1801) Pluto ... Ceres and Eris) plus the two named in 2008 (Haumea and Makemake ...
Articles relating to the dwarf planet Eris, the most massive and second-largest known dwarf planet in the Solar System. Pages in category "Eris (dwarf planet)" The following 8 pages are in this category, out of 8 total.
Brown estimated, prior to the discovery of its satellite, that 2013 FY 27 was very likely to be a dwarf planet, due to its large size. [10] However, Grundy et al. calculate that bodies such as 2013 FY 27 , less than about 1000 km in diameter, with albedos less than ≈0.2 and densities of ≈1.2 g/cm 3 or less, may retain a degree of porosity ...
By RYAN GORMAN Scientists may have found Planet X -- the long-rumored object believed to be larger than Earth and further from the sun than Pluto. Planet X and another object dubbed "Planet Y ...