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  2. Universe Sandbox - Wikipedia

    en.wikipedia.org/wiki/Universe_Sandbox

    Universe Sandbox is a series of interactive space sandbox gravity simulator educational software video games.Using Universe Sandbox, users can see the effects of gravity on objects in the universe and run scale simulations of the Solar System, various galaxies or other simulations, while at the same time interacting and maintaining control over gravity, time, and other objects in the universe ...

  3. Orrery - Wikipedia

    en.wikipedia.org/wiki/Orrery

    A tellurion will show the Earth with the Moon revolving around the Sun. It will use the angle of inclination of the equator from the table above to show how it rotates around its own axis. It will show the Earth's Moon, rotating around the Earth. [23] A lunarium is designed to show the complex motions of the Moon as it revolves around the Earth.

  4. Barycenter (astronomy) - Wikipedia

    en.wikipedia.org/wiki/Barycenter_(astronomy)

    If Jupiter had Mercury's orbit (57,900,000 km, 0.387 AU), the Sun–Jupiter barycenter would be approximately 55,000 km from the center of the Sun (⁠ r 1 / R 1 ⁠ ≈ 0.08). But even if the Earth had Eris's orbit (1.02 × 10 10 km, 68 AU), the SunEarth barycenter would still be within the Sun (just over 30,000 km from the center).

  5. Lunar Laser Ranging experiments - Wikipedia

    en.wikipedia.org/wiki/Lunar_Laser_Ranging...

    The center of Earth to center of Moon distance is computed by a program that numerically integrates the lunar and planetary orbits accounting for the gravitational attraction of the Sun, planets, and a selection of asteroids. [36] [23] The same program integrates the 3-axis orientation of the Moon called physical Libration.

  6. 2024 PT5 - Wikipedia

    en.wikipedia.org/wiki/2024_PT5

    The object orbits the Sun but makes slow close approaches to the EarthMoon system. Between 29 September (19:54 UTC) and 25 November 2024 (16:43 UTC) (a period of 1 month and 27 days) [4] it passed just outside Earth's Hill sphere (roughly 0.01 AU [1.5 million km; 0.93 million mi]) at a low relative velocity (in the range 0.002 km/s (4.5 mph) – 0.439 km/s [980 mph]) and will become ...

  7. Supercomputer simulation re-enacts the birth of the Moon - AOL

    www.aol.com/supercomputer-simulation-enacts...

    The formation of the Moon billions of years ago is cloaked in mystery. Most astronomers believe the young Earth, still cooling off from its formation, was struck by a mars-sized body called Theia ...

  8. Orbit modeling - Wikipedia

    en.wikipedia.org/wiki/Orbit_modeling

    Orbit modeling is the process of creating mathematical models to simulate motion of a massive body as it moves in orbit around another massive body due to gravity.Other forces such as gravitational attraction from tertiary bodies, air resistance, solar pressure, or thrust from a propulsion system are typically modeled as secondary effects.

  9. Syzygy (astronomy) - Wikipedia

    en.wikipedia.org/wiki/Syzygy_(astronomy)

    At the new and full moon, the Sun and Moon are in syzygy. Their tidal forces act to reinforce each other, and the ocean both rises higher and falls lower than the average. [6] Tidal variations can also be measured in the Earth's crust, and these Earth tide influences may affect the frequency of earthquakes.