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icon hinting to the presence of a table Table of The Largest KBOs Known

The largest KBOs known, with data for some of them, are listed below. 50 new solar system objects so far have been discovered like Pluto and Eris by 2016, and NASA thinks our solar system could hold dozens of such dwarf planets. The latest such minor planet discovered is 2014 UZ224 (by 2016), at 330-mile (531-kilometer) wide, over 8 billion miles away from the Sun as it takes 1,100 year to complete one orbit, compared, for example, to Pluto with 245 years

thumbnail to a view of the Kuiper Belt and the Oort Cloud
click to a view of the Kuiper Belt and the Oort Cloud

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KBOs (and One Oort Cloud Object)
Other KBOs (only) Objects, with Sparser Data

arrow back KBOs (and One Oort Cloud Object)

KBOs (and One Oort Cloud Object)
NameDate of DiscoveryDiameter (in Miles, km in Brackets)Semimajor Axis (in miles, km in brackets, in AU)Orbital Period (in Years)EccentricityInclination (in ° Relative to the Ecliptic)Remarks
Pluto19301,485 (2,390)2.7-4.5 billion (4.3-7.2 billion) 29-48 AU2480.24417.2Pluto has one moon, Charon (diameter: 737 mi -1,186 km)
QuaoarJun. 2002800 (1,290)3.9 billion (6.300 billion) 42 AU285?less than 0.048-
2004 DWFeb. 2004990 (1,600)4.2 billion (6,7 billion) 45 AUnanana-
2018 VG18Dec. 2018more than 310 (plus de 500)5.5 billion miles (9 billion km) 60 AUmore than 1,000nanathe discovery of that body led to relaunch the question of 'Planet X'
2003 UB313 (Xena, or Eris)Jan. 20051,490 (2,397)10 billion miles (16 billion km)560na45?first KBO to be discovered of the size of Pluto. One of the most reflective body in the solar system. Eris' moon has been named 'Dysnomia', the demon goddess of lawlessness and the daughter of Eris
SednaNov. 20041,000 (1,600)7-84 billion (11.4-137 billion km) 76-867 AU10,500highly ellipticalnacoolest object in the solar system; slowest rotation (40 days) in the solar system; might have a moon
2007 OR10na955 (1,535)nanananathe third largest of the current roster of about half a dozen dwarf planets, quite dark and rotating in 45 hours. Most of the known dwarf planets in the Kuiper Belt larger? than 600 miles across have companions hinting to collisions at the time of their formation at a adequate speed must have been frequent, making satellites easier to form
2015 TG387na170 (300)3,8-107 billion miles (6-173 billion km)na nanana

A new dwarf planet, dubbed 2015 RR245, with a highly elliptical orbit lasting 700 Earth years to complete came to add, by mid-2016, to the roster of other dwarf planets in our solar system

arrow back Other KBOs (only) Objects, with Sparser Data

Other KBOs (only) Objects, with Sparser Data
NameDiameterRemarks
2003 EL61746? (1,200?)-
2005 FY9777? (1,250?)-
Ixionab. 662 (1,065)-
2002 AW197ab. 553 (ab. 890)-
Varunaab. 559 (ab. 900)-
Farfaroutna140 AU, more than 1,000 years to orbit the Sun

Website Manager: G. Guichard, site 'Amateur Astronomy,' http://stars5.6te.net. Page Editor: G. Guichard. last edited: 12/18/2018. contact us at ggwebsites@outlook.com
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