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Extra-close oppositions of Mars happen every 15 to 17 years, when we pass between Mars and the Sun around the time of its perihelion (closest point to the Sun in orbit). The minimum distance between Earth and Mars has been declining over the years, and in 2003 the minimum distance was 55.76 million km, nearer than any such encounter in almost ...
Crocco searched for an orbit with the following properties: Crosses the orbit of the Earth; Crosses the orbit of Mars; Orbital period of one year; With proper selection of a certain launch window, this would also have allowed the spacecraft to return one year after departure. By applying slight modifications to the trajectory it would have been ...
The diagram shows a Hohmann transfer orbit to bring a spacecraft from a lower circular orbit into a higher one. It is an elliptic orbit that is tangential both to the lower circular orbit the spacecraft is to leave (cyan, labeled 1 on diagram) and the higher circular orbit that it is to reach (red, labeled 3 on diagram).
Earth/Mars transfer time (days) Notes 1 1 2.135 2.23 146 Aldrin cycler 2 2 4.27 2.33 158 2 3 4.27 1.51 280 Aphelion inside semi-major axis of Mars orbit 3 4 6.405 1.89 189 3 5 6.405 1.45 274 Aphelion inside semi-major axis of Mars orbit 3 5 6.405 1.52 134 Aphelion inside semi-major axis of Mars orbit 4 5 8.54 1.82 88 4 6 8.54 1.53 157
Outerra is a Slovak computer software company best known for its middleware 3D planetary graphics engine, called Outerra engine, in development since 2008. [2] The engine renders high-quality terrain, terrain texturing, flora and water flow normal maps using relatively sparse and highly compressed data through fractal processing and other types of procedural generation.
The asteroid and comet belts orbit the Sun from the inner rocky planets into outer parts of the Solar System, interstellar space. [16] [17] [18] An astronomical unit, or AU, is the distance from Earth to the Sun, which is approximately 150 billion meters (93 million miles). [19] Small Solar System objects are classified by their orbits: [20] [21]
Aerocapture is an orbital transfer maneuver in which a spacecraft uses aerodynamic drag force from a single pass through a planetary atmosphere to decelerate and achieve orbit insertion. Aerocapture uses a planet's or moon's atmosphere to accomplish a quick, near-propellantless orbit insertion maneuver to place a spacecraft in its science orbit ...
This is a category for any video game where the player controls actions taking place, at least partially, on Mars. The action must take place on the surface Mars itself, not simply in orbit above Mars. This includes any alternate universe Mars, such as after terraforming, or on a seemingly fantasical Mars, as long as it is in relation to Earth.