Directorio | Astronomía y Austronáutica | Astrogeología | Planetoides

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Stellarium Web Online Star Map A free online planetarium, showing a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope.	The Minor Planet Center The official organization for the collection of observational data for minor planets (asteroids) and comets, and for the calculation of their orbits.