Astronomical map

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astronomical map

any cartographic representation of the stars, galaxies, or surfaces of the planets and the Moon. Modern maps of this kind are based on a coordinate system analagous to geographic latitude and longitude. In most cases, modern maps are compiled from photographic observations made either with Earth-based equipment or with instruments carried aboard spacecraft.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Astronomical map is always a great word to know.
So is callithumpian. Does it mean:
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a gadget; dingus; thingumbob.
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