Remnant of the ancients
David Cowland from Hamilton, Victoria, Australia RCW 86 lies about 8,000 light-years away in the southern constellation Circinus. Catalogued as an emission nebula, it is the result of an expanding shell of gas and dust expelled by the explosion of a massive star 185 C.E. This event was recorded by ancient Chinese astronomers as aContinue reading "Remnant of the ancients" The post Remnant of the ancients appeared first on Astronomy Magazine.
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