High in the southern sky around 4 A.M. local daylight time is the stunning Swan Nebula (M17), also known as the Omega Nebula. It glides serenely through northern Sagittarius, far above the spout of ...
In his 1888 book Astronomy With an Opera-Glass, Garrett Serviss wrote: “The Milky Way, streaming down out of the northeast, pours, in a luminous flood, through Sagittarius, inundating that whole ...
Emission nebulae are the subject of many of the most spectacular astrophotographs published in the last decade. Although there are many subcategories of nebulae, they all consist of interstellar gas ...
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