The Earth and Moon System
Simulates Earth and the Moon as a two-body system: the Moon at 384,400 km, tidally locked on a 27.3-day orbit, with the Sun included as the distant perturber.
Scenarios
Solar System
Simulations of our planetary neighborhood from JPL Horizons ephemerides: the eight planets, major moon systems, asteroid families, short-period comets, and interstellar visitors such as ʻOumuamua, Borisov, and 3I/ATLAS.
The Inner Solar System
Simulates Mercury, Venus, Earth, and Mars — the four rocky planets inside 1.5 AU — on their real heliocentric orbits around the Sun, with no outer giants.
The Kuiper Belt and Scattered Disc
Simulates the outer Solar System beyond Neptune: Pluto, Eris, Haumea, Makemake, Sedna and other Kuiper Belt and scattered-disc bodies on their eccentric, inclined orbits.
The Largest Centaurs
Simulates the eight largest centaurs, including ringed Chariklo and Chiron, crossing among Jupiter, Saturn, Uranus, and Neptune on short-lived planet-crossing orbits.
The Largest Near-Earth Asteroids
Simulates the ten largest near-Earth asteroids — from 34 km Ganymed to Toutatis — on planet-crossing paths among Mercury, Venus, Earth, and Mars.
The Solar System
Simulates the eight major planets around the Sun on JPL Horizons orbits for 1 January 2025. No moons, asteroids, or dwarf planets — just the Keplerian planetary architecture.
