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  2. List of Solar System objects by size - Wikipedia

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

    The listed objects currently include most objects in the asteroid belt and moons of the giant planets in this size range, but many newly discovered objects in the outer Solar System are missing, such as those included in the following reference. [58] Asteroid spectral types are mostly Tholen, but some might be SMASS.

  3. Kuiper belt - Wikipedia

    en.wikipedia.org/wiki/Kuiper_belt

    The six largest TNOs (Eris, Pluto, Gonggong, Makemake, Haumea and Quaoar) are all known to have satellites, and two of them have more than one. A higher percentage of the larger KBOs have satellites than the smaller objects in the Kuiper belt, suggesting that a different formation mechanism was responsible. [116]

  4. List of the brightest Kuiper belt objects - Wikipedia

    en.wikipedia.org/wiki/List_of_the_brightest...

    Since the year 2000, a number of Kuiper belt objects (KBOs) with diameters of between 500 and 1500 km (more than half that of Pluto) have been discovered. 50000 Quaoar, a classical KBO discovered in 2002, is over 1000 km across. Makemake and Haumea, both announced on 29 July 2005, are larger still.

  5. Two new planets bigger than Earth possibly found in our solar ...

    www.aol.com/news/2015-01-21-two-new-planets...

    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," are among 13 ...

  6. Eris (dwarf planet) - Wikipedia

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

    Eris has been measured at 2,326 ± 12 kilometres (1,445 ± 7 mi) in diameter; [12] its mass is 0.28% that of the Earth and 27% greater than that of Pluto, [23] [24] although Pluto is slightly larger by volume. [25] Both Eris and Pluto have a surface area that is comparable to that of Russia or South America. Eris has one large known moon, Dysnomia.

  7. Triton (moon) - Wikipedia

    en.wikipedia.org/wiki/Triton_(moon)

    Triton is only slightly larger than Pluto and is nearly identical in composition, which has led to the hypothesis that the two share a common origin. [ 27 ] This has been further supported in a 2024 study of the chemical composition of Pluto and Triton which suggests they originated in the same region of the outer Solar System before the latter ...

  8. List of gravitationally rounded objects of the Solar System

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

    The moons of the trans-Neptunian objects (other than Charon) have not been included, because they appear to follow the normal situation for TNOs rather than the moons of Saturn and Uranus, and become solid at a larger size (900–1000 km diameter, rather than 400 km as for the moons of Saturn and Uranus).

  9. Solar System - Wikipedia

    en.wikipedia.org/wiki/Solar_System

    Makemake is the brightest object in the Kuiper belt after Pluto. Discovered in 2005, it was officially named in 2009. [212] Its orbit is far more inclined than Pluto's, at 29°. [213] It has one known moon, S/2015 (136472) 1. [214] Quaoar (41.9–45.5 AU) is the second-largest known object in the classical Kuiper belt, after Makemake.