List of trans-Neptunian objects

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List of trans-Neptunian objects
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For unnumbered bodies, see List of unnumbered trans-Neptunian objects.

This is a list of trans-Neptunian objects (TNOs), (minor planets in the Solar System that orbit the Sun at a greater distance on average), than Neptune.

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List

See also: List of unnumbered trans-Neptunian objects
See also: List of possible dwarf planets § list
See also: Minor-planet moon § Trans-Neptunian objects
More information Designation, Discovery ...
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Unnumbered TNOs

Main article: List of unnumbered trans-Neptunian objects
See also: List of possible dwarf planets § list

There are more than 3,000 unnumbered trans-Neptunian objects, defined here as minor planets with a semi-major axis larger than 30.1 AU (Neptune's average orbital distance from the Sun). The data is sourced from MPC's "List of Trans Neptunian Objects" and "List Of Centaurs and Scattered-Disk Objects", completed with information from Johnston's Archive (diameter, class, binary status, etc.).[3][4][5] For the list of numbered TNOs, see § List.

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Trans-Neptunian satellites

Main article: Minor-planet moon § Trans-Neptunian objects

A growing number of TNOs are revealed to be binary systems with a minor-planet moon orbiting its primary. There are also several multiple systems with more than one satellite.

Diagram: orbital classes

Thumbplutinos (3∶2 res.): 538 (13.1%)Haumeids: 12 (0.3%)twotinos (2∶1 res.): 132 (3.2%)other resonances: 377 (9.2%)cold classical: 733 (17.8%)hot classical: 667 (16.2%)SDOs: 565 (13.7%)sednoids: 4 (0.1%)ESDOs: 10 (0.2%)EDDOs: 10 (0.2%)damocloids: 71 (1.7%)centaurs: 212 (5.2%)unclassified TNOs: 782 (19.0%)
  •   plutinos (3∶2 res.): 538 (13.1%)
  •   Haumeids: 12 (0.3%)
  •   twotinos (2∶1 res.): 132 (3.2%)
  •   other resonances: 377 (9.2%)
  •   cold classical: 733 (17.8%)
  •   hot classical: 667 (16.2%)
  •   SDOs: 565 (13.7%)
  •   sednoids: 4 (0.1%)
  •   ESDOs: 10 (0.2%)
  •   EDDOs: 10 (0.2%)
  •   damocloids: 71 (1.7%)
  •   centaurs: 212 (5.2%)
  •   unclassified TNOs: 782 (19.0%)
4140 TNOs (a > 30.1 AU) from Johnston's archive grouped by orbital subclasses.[5]

Trans-Neptunian objects colorized by their orbital subclass and plotted in the orbital parameter space (eccentricity and inclination versus semi-major axis). The plot for the entire region contains 1418 objects including plutinos (#185), twotinos (#36), other resonant objects (#124), cubewanos (#420), inner (#40) and outer classical objects (#6), SDOs (#289), sednoids (#11), centaurs (#101) and other TNOs (#206).[5]

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Core region (38–49 AU): inclination (left) and eccentricity (right) vs. semi-major axis (a)
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Full region on a logarithmic scale from 30 to 1000 AU: inclination (left) and eccentricity (right) vs. a
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