plutino
Let an agent describe plutinos by designation, orbit, resonance and physical data, with sourced catalogue information.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent describe plutinos by designation, orbit, resonance and physical data, with sourced catalogue information.
A trans-Neptunian object in a 2:3 mean-motion resonance with Neptune, completing two orbits for every three of Neptune, at an average distance of about 39.4 au; named after Pluto, the largest plutino.
What it is for: Understanding the dynamical structure and history of the outer Solar System.
It can be look up plutino orbits; explain 2:3 resonance; compare with other trans-Neptunian groups; find observation data.
Distinguishing features
Resonant with Neptune
Includes Pluto
Protected from close encounters by resonance
Evidence for planetary migration
What it looks like
Faint distant points of light; Pluto has been imaged in detail by New Horizons.
Physical character
semi-major axis: about 39.4 au
orbital period: about 247 years
How it is recognised
2:3 resonance with Neptune
Semi-major axis near 39.4 au
Classical Kuiper belt objects are not resonant
Related models
is a kind of - category
includes - example
is in resonance with - planet
is part of - region
In practice
Families and kinds
Pluto and moons
large plutinos such as Orcus
small plutinos
Identifiers
MPC designation numbered minor planet catalogue
Standards and regulation
IAU minor planet nomenclature
Failure modes and hazards
Outdated membership lists
Confusing plutinos with plutoids
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Identity Which object.
Catalogues identify.
Designation
Name.
Designation
Designation.
- Which plutino is meant, and what is its designation? provenance
- Is its resonance confirmed? boundary
Orbit
Elements.
Orbit
Orbit.
- What are its orbital elements? measurement
- From which ephemeris? provenance
Dynamics Resonance.
Resonance protects orbits.
Resonance
2:3.
Resonance
Resonance.
- What does a 2:3 resonance with Neptune mean? definition
- Why does it prevent close encounters? definition
Migration
History.
Migration
Planetary migration.
- How do plutinos support models of Neptune migration? provenance
- How certain are these models? boundary
Physical Properties.
Properties are uncertain.
Size
Estimates.
Size
Size.
- What is its estimated size and albedo? measurement
- How were they measured? provenance
Moons
Satellites.
Moons
Moons.
- Does it have known moons? provenance
- Which observations found them? provenance
Terms Clarity.
Terms are confused.
Plutoid
Different term.
Plutoid
Plutino versus plutoid.
- How does plutino differ from plutoid? definition
- Which applies here? boundary
Teaching
Explaining.
Teaching
Teaching.
- How can orbital resonance be explained simply? action
- Which diagrams help? provenance
What the second pass must settle
- Should plutoids be distinguished explicitly?
- How should orbit data be linked?
- How should resonance be explained?