Space and Astronomy Atlas

How The Universe Works
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Celestial Objects

1 category, 284 entries in all. Pick one to explore.

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Reference entries for the physical objects this atlas catalogs, following International Astronomical Union object classes: planets and the Sun, dwarf planets, moons, asteroids and minor planets, comets, trans-Neptunian and outer solar system objects, interstellar visitors, stars and multiple star systems, star clusters, nebulae, galaxies, black holes and other compact objects, and exoplanets. This atlas describes an object's own physical and orbital character; the physics that explains why it behaves as it does belongs to Science, and a classical astronomer-physicist's own biography belongs there too, linked back by cross-atlas edge rather than duplicated here.

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