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an object that orbits another object. In space, satellites may be made by man, or they may be natural. Most man-made satellites also orbit the Earth, but some orbit other planets, such …
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Questions about patterns formed by group of prominent stars in the night sky.
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Questions about the gas that lays between stars in galaxies.
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a disk-shaped belt of icy debris orbiting in the outer solar system, lying beyond the orbit of Neptune and extending to a distance of about 50 astronomical units, containing thousan…
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Questions regarding undesired brightening of the night sky inhibiting observation of astronomical objects.
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Questions about the early phases of the star formation process. A protostar is a large mass of gas that results of the contraction of a molecular cloud.
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Questions about planets that do not orbit around a star. These planets travel through space.
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Questions regarding Neptune, the 8th and furthest major planet orbiting Earth's sun.
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Questions regarding the process of assigning an identifying set of characters to an astronomical object.
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Stellar dynamics describe the branch of astronomy that studies the regularities in the motions of stars in gravitational fields of a stellar systems, as well as the evolution of stellar systems.
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Questions regarding an object orbiting around another object due to the force of gravity.
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Questions about the complete or partial blocking of the sun by the moon.
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Questions about Titan, the largest moon of Saturn.
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Questions regarding Uranus, the 7th planet from Earth's sun.
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Questions regarding a family of extremely low-mass, electrically neutral particles described in the Standard Model of particle physics.
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Questions about Mercury, the first planet from Earth'd sun. Also the smallest major planet in the Solar System,
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Questions about observations performed without the aid of any optical instrument.
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Questions on any of the 5 locations where a small object can maintain a stable orbital configuration with respect to two co-orbiting larger bodies.
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a relatively inexpensive Newtonian telescope, in which the tube assembly slips freely in the lower base.