Examlex
Spaceman Speff orbits spherical asteroid X with his spaceship.To remain in a circular orbit at 421 km from the asteroid's center,he should maintain a speed of 80 m/s. What is the mass of planet X?
(G = 6.67 × 10-11 N • m2/kg2)
Orbited
Describes the path one object takes around another object due to the gravitational forces between them, commonly used in the context of planets and satellites.
Solar Wind
Solar Wind is a stream of charged particles, including electrons and protons, ejected from the upper atmosphere of the sun, affecting the entire solar system.
Comet
An icy, small Solar System body that, when passing close to the Sun, warms and begins to release gases, a process called outgassing, creating a visible atmosphere or coma, and sometimes a tail.
Dwarf-planet
A celestial body resembling a small planet but lacking certain technical criteria, such as having cleared its orbit of other debris.
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