The largest objects in the solar system
Ganymede is the largest natural satellite of Jupiter and also the largest natural satellite in the solar system. With a diameter of about 5262 kilometers it is the largest object after the Sun and the planets. It was discovered by Galileo in 1610 and is named after the Greek mythological character Ganymede, who was a handsome young man abducted by Zeus to become the divine cup of Olympus.
Table of solar system objects classified by size
The solar system is the name given to the planetary system made up of the Sun and the celestial objects orbiting around it. Our solar system has only one star, the Sun. However astronomers have observed that multiple solar systems, with two, three or more stars, are numerous. Without competition, the Sun has become gigantic, it has captured 99.86% of the total mass of dust and gas from the original nebula. Jupiter, the largest planet in the system, captured 71% of the remainder. The other planets have shared the residue of this gravitational evolution.
Definition of planet
“A planet is a celestial body which is in orbit around the Sun, which has sufficient mass for its gravity to overcome the cohesive forces of the solid body and maintain it in hydrostatic equilibrium (spherical shape), and which has eliminated any body moving in a near orbit”.
This definition was approved on August 24, 2006, during the 26th General Assembly of the UAI by a show of hands of 400 scientists after ten days of discussions.
| Objets | Caractéristique | Diamètre moyen | Rapport/Terre |
|---|---|---|---|
| Soleil | Étoile | 1 392 000 km | 109.125 |
| Jupiter | Planète | 142 984 km | 11.208 |
| Saturne | Planète | 120 536 km | 9.449 |
| Uranus | Planète | 51 118 km | 4.007 |
| Neptune | Planète | 49 528 km | 3.882 |
| Terre | Planète | 12 756 km | 1 |
| Vénus | Planète | 12 102 km | 0.949 |
| Mars | Planète | 6 796 km | 0.532 |
| Ganymède | Lune de Jupiter | 5 268 km | 0.413 |
| Titan | Lune de Saturne | 5 152 km | 0.404 |
| Mercure | Planète | 4 880 km | 0.382 |
| Callisto | Lune de Saturne | 4 820 km | 0.378 |
| Io | Lune de Jupiter | 3 660 km | 0.286 |
| Lune | Lune de la Terre | 3 474 km | 0.273 |
| Europe | Lune de Jupiter | 3 120 km | 0.245 |
| Triton | Lune de Neptune | 2 706 km | 0.212 |
| Éris | Planète naine | 2 326 km | 0.364 |
| Pluton | Planète naine | 2 306 km | 0.187 |
| Makemake | Planète naine | ≈ 1 600 km | 0.250 |
| Titania | Lune d'Uranus | 1 577 km | 0.123 |
| Rhéa | Lune de Saturne | 1 528 km | 0.119 |
| Obéron | Lune d'Uranus | 1 523 km | 0.119 |
| Japet | Lune de Saturne | 1 469 km | 0.115 |
| Charon | Planète naine | 1 206 km | 0.095 |
| Umbriel | Lune d'Uranus | 1 169 km | 0.092 |
| Ariel | Lune d'Uranus | 1 158 km | 0.090 |
| Dioné | Lune de Saturne | 1 123 km | 0.088 |
| Téthys | Lune de Saturne | 1 062 km | 0.083 |
| Cérès | Planète naine | 974 km | 0.076 |
| Vesta | Astéroïde | ≈ 525 km | 0.041 |
| Encelade | Lune de Saturne | ≈ 504 km | 0.039 |
| Miranda | Lune d'Uranus | ≈ 471 km | 0.036 |
| Protée | Lune de Neptune | ≈ 420 km | 0.033 |
| Mimas | Lune de Saturne | ≈ 396 km | 0.031 |
| Hypérion | Lune de Saturne | ≈ 270 km | 0.021 |
| Phœbé | Lune de Saturne | ≈ 212 km | 0.017 |
| Janus | Lune de Saturne | ≈ 180 km | 0.014 |
| Amalthée | Lune de Jupiter | ≈ 167 km | 0.013 |
| Épiméthée | Lune de Saturne | ≈ 167 km | 0.013 |
| Prométhée | Lune de Neptune | ≈ 116 km | 0.009 |
Do Natural Satellites of Natural Satellites Exist?
Phobos and Deimos: An Orbital Dynamics Under High Gravitational Stress
The Moons of Jupiter: A Celestial Archipelago of over 100 Different Worlds
Saturn's Moons: Worlds That Could Harbor Microbial Life
The moons of Uranus: A strange tilted celestial ensemble
Triton and the Moons of Neptune: The Mystery of the Captive Moon
If the Moon Did Not Exist: Impacts on Earth and Life
The Far Side of the Moon: The Hidden Half Revealed
Tidal Effects in the Solar System
Moons in the Shadow: Jupiter's Most Discreet Satellites
Moon Phases
Apollo 8: The Photo That Shook the World
The largest objects in the solar system
The Giant Impact: How Our Moon Came to Be
Phobos Facing Its Destiny: Collision or Breakup
Europa: An Icy Jewel in Jupiter's Orbit
Io: Jupiter's Moon in Perpetual Eruption
Iapetus, Saturn's two-faced moon: between shadow and light
Dione: Saturn's Icy Moon with Buried Secrets and Frozen Landscapes
Mimas: Saturn's Moon with a Giant Crater
The Origins of the Moon: From Chaos to Formation
Pluto's Satellites: Strange Companions in the Shadow of the Dwarf Planet
Craters of the Moon: Witnesses of the Solar System's History
Hyperion, moon of Saturn
Eclipses explained by the plane of the lunar orbit
Titan and Dione: Saturn's Icy Sisters
Enceladus: The Ocean Hidden Beneath the Ice
Amalthea: A Dusty Red World at the Heart of Jupiter's Rings
Deimos: The Small, Smooth, Bumpy, and Heavily Cratered Object
Moon Illusion
Rhea and Saturn’s Rings: Orbital Dynamics
Helen, the small Trojan moon of Saturn
Titania: What space probes have revealed about Uranus's moon
The Blue Moon
Phobos: The Fascinating Descent to Mars
Charon: An Inseparable Duo with Pluto
Roche Limit or Roche Radius
When the Moon Becomes Giant: The Supermoon Phenomenon
The Satellite Worlds of the Solar System: Hidden Oceans, Ice Volcanoes, and Fleeting Atmospheres
Tethys, Saturn's Moon: Ithaca Chasma, Frozen Ocean and Fractured Crust
Titan: A Hazy World Favorable to Prebiotic Life?
The Dance of Prometheus: Between Shadow and Light
Triton: Neptune's Rebellious Moon – Between Gravitational Capture and Active Cryovolcanism
Miranda: Uranus' Moon of a Thousand Scars
Mascons: Lunar Gravitational Anomalies