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A celestial map by the Dutch cartographer Frederik de Wit, 1670. A star chart is a celestial map of the night sky with astronomical objects laid out on a grid system. They are used to identify and locate constellations, stars, nebulae, galaxies, and planets. [1]
Sky can be depicted as many different colors, such as a pale blue or the lack of any color at all, such as the night sky, which has the appearance of blackness, albeit with a scattering of stars on a clear night. During the day, the sky is seen as a deep blue due to the sunlight reflected on the air. Astronomically speaking, the sky is a ...
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The Digitized Sky Survey (DSS) is a digitized version of several photographic astronomical surveys of the night sky, produced by the Space Telescope Science Institute between 1983 and 2006. Versions and source material
The star chart contains the brightest stars, constellations and (possibly) deep-sky objects visible from a particular latitude on Earth. The night sky that one sees from the Earth depends on whether the observer is in the northern or southern hemispheres and the latitude. A planisphere window is designed for a particular latitude and will be ...
Paranal Observatory nights. [3] The concept of noctcaelador tackles the aesthetic perception of the night sky. [4]Depending on local sky cloud cover, pollution, humidity, and light pollution levels, the stars visible to the unaided naked eye appear as hundreds, thousands or tens of thousands of white pinpoints of light in an otherwise near black sky together with some faint nebulae or clouds ...
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Drawing by René Descartes explaining the formation of a rainbow. The antisolar point is the center of the rainbow M. It lies at the end of the straight line running from the sun through the observer's eye E. Centered on the antisolar point, this photo features various antisolar/subhorizon haloes, as viewed from a plane.