{"dataset":{"slug":"minor-planet-populations","title":"Minor-Planet Populations","description":"Dynamical populations and orbital resonances — main belt, Hilda, Trojans, Kuiper Belt, and more.","version":"1.0.0","lastGenerated":"2026-06-29","license":"CC BY-SA 4.0","entityCount":16,"sources":["nasa","jpl"]},"entities":[{"id":"orbital_resonance:jupiter-1-1","name":"1:1 resonance with Jupiter","type":"orbital_resonance","domain":"science","description":"The co-orbital resonance that traps the Jupiter Trojans at the planet's L4 and L5 Lagrange points, sharing Jupiter's orbital period.","entryPath":"/asteroids/resonance/jupiter-1-1"},{"id":"orbital_resonance:neptune-1-1","name":"1:1 resonance with Neptune","type":"orbital_resonance","domain":"science","description":"The co-orbital resonance that holds the Neptune Trojans at the planet's Lagrange points.","entryPath":"/asteroids/resonance/neptune-1-1"},{"id":"orbital_resonance:neptune-2-3","name":"2:3 resonance with Neptune","type":"orbital_resonance","domain":"science","description":"The resonance in which a body completes two orbits for every three of Neptune's — the home of the 'plutinos', including Pluto itself.","entryPath":"/asteroids/resonance/neptune-2-3"},{"id":"orbital_resonance:jupiter-3-2","name":"3:2 resonance with Jupiter","type":"orbital_resonance","domain":"science","description":"A mean-motion resonance in which a body completes three orbits for every two of Jupiter's, stabilising the Hilda group in the outer main belt.","entryPath":"/asteroids/resonance/jupiter-3-2"},{"id":"minor_planet_group:centaurs","name":"Centaurs","type":"minor_planet_group","domain":"science","description":"Icy small bodies orbiting between Jupiter and Neptune on unstable orbits — transitional objects between the Kuiper Belt and the comets, some of which show cometary activity.","entryPath":"/asteroids/group/centaurs"},{"id":"minor_planet_group:detached","name":"Detached Objects","type":"minor_planet_group","domain":"science","description":"Trans-Neptunian objects on distant orbits detached from Neptune's gravitational influence, such as Sedna — the innermost members may belong to the inner Oort cloud.","entryPath":"/asteroids/group/detached"},{"id":"trojan_group:greek-camp","name":"Greek Camp (L4)","type":"trojan_group","domain":"science","description":"The Jupiter Trojans leading the planet at the L4 Lagrange point, traditionally named after Greek heroes of the Trojan War — led by 588 Achilles.","entryPath":"/asteroids/trojans/greek-camp"},{"id":"minor_planet_group:hilda","name":"Hilda Group","type":"minor_planet_group","domain":"science","description":"A group of outer-belt asteroids held in a 3:2 orbital resonance with Jupiter, tracing a distinctive triangular pattern over time.","entryPath":"/asteroids/group/hilda"},{"id":"minor_planet_group:hungaria","name":"Hungaria Group","type":"minor_planet_group","domain":"science","description":"A distinct group of small, high-inclination asteroids just inside the main belt, named for 434 Hungaria.","entryPath":"/asteroids/group/hungaria"},{"id":"trojan_group:jupiter-trojans","name":"Jupiter Trojans","type":"trojan_group","domain":"science","description":"The vast swarm of asteroids sharing Jupiter's orbit in a 1:1 resonance, split between the leading Greek camp and the trailing Trojan camp — the target population of NASA's Lucy mission.","entryPath":"/asteroids/trojans/jupiter-trojans"},{"id":"minor_planet_group:kuiper-belt","name":"Kuiper Belt","type":"minor_planet_group","domain":"science","description":"The broad ring of icy bodies beyond Neptune, home to Pluto and the other classical trans-Neptunian objects.","entryPath":"/asteroids/group/kuiper-belt"},{"id":"minor_planet_group:main-belt","name":"Main Asteroid Belt","type":"minor_planet_group","domain":"science","description":"The main asteroid belt between Mars and Jupiter, home to the great majority of known asteroids — from the dwarf planet Ceres down to countless small bodies.","entryPath":"/asteroids/group/main-belt"},{"id":"minor_planet_group:mars-crossers","name":"Mars-Crossing Asteroids","type":"minor_planet_group","domain":"science","description":"Asteroids on orbits that cross the path of Mars, dynamically linked to the inner edge of the main belt.","entryPath":"/asteroids/group/mars-crossers"},{"id":"trojan_group:neptune-trojans","name":"Neptune Trojans","type":"trojan_group","domain":"science","description":"Minor planets sharing Neptune's orbit in a 1:1 resonance at its L4 and L5 points — a population thought to rival the Jupiter Trojans in number.","entryPath":"/asteroids/trojans/neptune-trojans"},{"id":"minor_planet_group:scattered-disc","name":"Scattered Disc","type":"minor_planet_group","domain":"science","description":"A sparse population of distant icy bodies on eccentric, inclined orbits, gravitationally scattered outward by Neptune — the likely source of many short-period comets.","entryPath":"/asteroids/group/scattered-disc"},{"id":"trojan_group:trojan-camp","name":"Trojan Camp (L5)","type":"trojan_group","domain":"science","description":"The Jupiter Trojans trailing the planet at the L5 Lagrange point, traditionally named after Trojan heroes — including the binary 617 Patroclus.","entryPath":"/asteroids/trojans/trojan-camp"}]}