The brightest TNOs, including newly-discovered 2015 RR245 are shown in this simulation.
2015 RR145 is a dwarf planet that may be in resonance with Neptune.
Polydeuces is a moon of Saturn that orbits in resonance with Dione and Helene.
Simulation of our solar system's recognized Plutoids.
The Sun orbits the barycenter of the solar system.
Hundreds of asteroids orbit Jupiter's Lagrange 4 and 5 points.
Hundreds of asteroids are recognized as potentially posing a threat to Planet Earth.
Simulations of a pair of NASA spacecraft designed to view the Sun in stereo.
Simulations of the nine spacecraft that have visited Jupiter.
Simulations of the five spacecraft that have visited Saturn.
A simple simulation of Saturn's A ring, B ring and C ring.
62 known moons orbit Jupiter. Many are in chaotic distant orbits from Jupiter
A simulation of the asteroid belt's 4 largest members.
Recently discovered potentially hazardous asteriod 2006 BQ6 makes a close pass to Earth on July 29, 2006.
Astronomers have announced the discovery of 3 new objects orbiting the Sun in the region beyond Neptune. One of them is larger than Pluto.
Two additional moons have been discovered in orbit around Pluto.
After a 7 month journey, the Mars Reconnaissance Orbiter arrives at the red planet.
Stars orbiting a seemingly empty point in our galaxy's core suggest that a massive black hole resides there.
Pluto orbits the Sun twice for every 3 orbits completed by Neptune.
Neptune's moon, Triton, has a retrograde orbit.
The Spitzer Space Telescope circles the Sun in an Earth-trailing orbit.
Can an Areosynchronous Satellite Maintain A Stable Orbit?
A simulation of our solar system's reservoir of comets.
A simulation of our solar system's planetary region.
A simulation containing all known moons, many asteroids, comets and spacecraft.
Two objects are locked into stable orbits in a hypothetical planet's Lagrange 4 & 5 points.
A rotating frame simulation of an object in a horseshoe orbit.
These simulations recreate the paths of test particles shown in diagrams (a) and (b) on page 325 ofSolar System Dynamics by C.D. Murray and S.F. Dermott.
A simulation of our Earth and Moon orbiting around their barycenter.
A simulation of a binary star system with planets around both stars.
Janus and Epimetheus travel around Saturn in a horseshoe orbit.
Saturn's moons Tethys, Telesto & Calypso are locked into a 1:1:1 resonance with each other. Watch as Telesto & Calypso are held captive in Tethys' Lagrange 4 & 5 points.
Saturn's moons Dione and Helene are locked into a 1:1 resonance with each other. Watch as Helene orbits Dione's Lagrange 4 point.
Watch as the three innermost Galilean moons of Jupiter orbit in resonance with each other.
Near-Earth-asteroid, Toutatis makes a close pass to planet Earth on September 29, 2004.
The odds were once considered as high as 1 in 37 that asteroid Apophis, also known as 2004 MN4 would impact Earth on April 13, 2029. Although it is now known that the asteroid will miss the Earth, it will come impressively close. Watch as asteroid 2004 MN4 passes through the Earth / Moon system, barely missing both the Earth and the Moon. Let the simulation run a few more minutes and watch as Apophis returns to Earth's region in 2036.
Watch as Earth's companion asteroid traces kidney bean shaped orbits around the Sun.
Earth's gravity causes Asteroid 2002 AA29 to orbit the Sun in a horseshoe orbit. At times, this asteroid enters a quasi-orbit around the Earth.
How did Sedna end up in its highly eccentric orbit? Astronomers Alessandro Morbidelli and Harold F. Levison have a theory. Sedna may have once orbited a brown dwarf. A close encounter with the Sun caused Sedna to be stripped from the brown dwarf and enter a solar orbit. This simulation reproduces their experiment.
In 1994, Comet Shoemaker-Levy 9 slammed into Jupiter. In this simulation you can watch the comet as it orbits Jupiter. A close pass to Jupiter in July 1992 causes the comet to break into pieces. These cometary fragments strike Jupiter in June 1994.
Three planets are known to orbit the star 55 Cancri A. This simulation illustrates the star system and investigates the dynamical orbital interactions between the planets.
100 moonlets in Earth orbit collide and merge to form 2 large moons.
Asteroid 5261 Eureka and six other asteroids share a solar orbit with Mars. Watch as the asteroids trace paths around Mars' Lagrange points in a rotating frame.
The orientation of the Moon's orbit rotates, influencing the timing of Eclipses. The nodes of the Moon's orbit complete a Saros cycle every 18 years. Watch as the plane of the Moon's orbit rotates like a warped record.
The Kozai Mechanism prevents the Earth from having a moon in a polar orbit.
Objects accelerating in different directions have their orbits altered in different ways.
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