| http://www.w3.org/ns/prov#value | - Celestia displays such features as detailed atmospheres on planets and moons, planet shine on orbiting satellites, sunsets and sunrises, moving clouds, planetary rings, eclipse and ring shadows, constellation lines, borders and illustrations, night-side lights (of cities), detailed surface textures, specular reflections off water and ice, nebula gases, and star flares.
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