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Additionally, astronomers have found 6 white dwarfs (stars that have exhausted all fusible hydrogen), 21 brown dwarfs, as well as 1 sub-brown dwarf, WISE 0855−0714 (possibly a rogue planet ). The closest system is Alpha Centauri, with Proxima Centauri as the closest star in that system, at 4.2465 light-years from Earth.
Dark Age of Camelot is a massively multiplayer online role-playing game released in October 2001 in North America, and in January 2002 in Europe. The game combines Arthurian lore, Norse mythology, and Celtic mythology with high fantasy. It is set in the period after King Arthur 's death, when his kingdom has split into three realms, which are ...
IAU designated constellations by area. Hydra is the largest constellation, covering more than 1⁄32 of the night sky and 19 times the area of Crux, the smallest constellation. The International Astronomical Union (IAU) designates 88 constellations of stars. In the table below, they are ranked by the solid angle that they subtend in the sky ...
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Cheonsang Yeolcha Bunyajido ( Korean : 천상열차분야지도; Hanja : 天象列次分野之圖; Korean pronunciation: [t͡ɕʰʌnsɐŋ jʌɭt͡ɕʰɐ puȵɐd͡ʑido]) is a fourteenth-century Korean star map, copies of which were spread nationwide in the Joseon Dynasty. The name is sometimes translated as the "chart of the constellations and ...
IAU designated constellations. In contemporary astronomy, 88 constellations are recognized by the International Astronomical Union (IAU). [1] Each constellation is a region of the sky bordered by arcs of right ascension and declination, together covering the entire celestial sphere. Their boundaries were officially adopted by the International ...
Star chart. 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] They have been used for human navigation since time immemorial. [2]
c. 300 BC — star catalog of Timocharis of Alexandria. c. 134 BC — Hipparchus makes a detailed star map. c. 150 — Ptolemy completes his Almagest, which contains a catalog of stars, observations of planetary motions, and treatises on geometry and cosmology. c. 705 — Dunhuang Star Chart, a manuscript star chart from the Mogao Caves at ...