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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Link To protogalaxy
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Protogalaxy
is always a great word to know.
So is winter solstice. Does it mean:
| the Dog Star, the brightest-appearing star in the heavens, located in the constellation Canis Major |
| the time when the sun is farthest south from the celestial equator occurring around December 21st |
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Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Encyclopedia Britannica
Encyclopedia
protogalaxy
in cosmology, vast cloud of gas that by contraction and condensation becomes a galaxy of stars. In evolutionary ("big-bang") models of creation, protogalaxies appear early in the expansion phase of the universe; in the steady-state model they are slowly but continually forming from newly created matter
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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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