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  2. Eris (dwarf planet) - Wikipedia

    en.wikipedia.org/wiki/Eris_(dwarf_planet)

    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.

  3. Chad Trujillo - Wikipedia

    en.wikipedia.org/wiki/Chad_Trujillo

    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 ...

  4. Portal:Solar System/Selected article/1 - Wikipedia

    en.wikipedia.org/wiki/Portal:Solar_System/...

    Eris (minor-planet designation: 136199 Eris) is the most massive and second-largest known dwarf planet in the Solar System. 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

  5. Scientists discern internal structure of mysterious dwarf ...

    www.aol.com/news/scientists-discern-internal...

    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 ...

  6. List of Solar System objects by size - Wikipedia

    en.wikipedia.org/wiki/List_of_Solar_System...

    These lists contain the Sun, the planets, dwarf planets, many of the larger small Solar System bodies (which includes the asteroids), all named natural satellites, and a number of smaller objects of historical or scientific interest, such as comets and near-Earth objects.

  7. List of gravitationally rounded objects of the Solar System

    en.wikipedia.org/wiki/List_of_gravitationally...

    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.

  8. Michael E. Brown - Wikipedia

    en.wikipedia.org/wiki/Michael_E._Brown

    He has been referred to by himself and by others as the man who "killed Pluto", [3] [4] [5] because he furthered Pluto's being downgraded to a dwarf planet in the aftermath of his discovery of Eris and several other probable trans-Neptunian dwarf planets. He is the author of How I Killed Pluto and Why It Had It Coming, published in 2010.

  9. (307261) 2002 MS4 - Wikipedia

    en.wikipedia.org/wiki/(307261)_2002_MS4

    (307261) 2002 MS 4 (provisional designation 2002 MS 4) is a large trans-Neptunian object in the Kuiper belt, which is a region of icy planetesimals beyond Neptune.It was discovered on 18 June 2002 by Chad Trujillo and Michael Brown during their search for bright, Pluto-sized Kuiper belt objects at Palomar Observatory.