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Draco: Difference between revisions
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One of the deep-sky objects in Draco is the Cat's Eye Nebula (NGC 6543), a planetary nebula approximately 3,000 light-years away that was discovered by English astronomer William Herschel in 1786.There are several faint galaxies in Draco, one of which is the lenticular galaxy NGC 5866, sometimes considered to be [[Messier 102]]. Another is the Draco Dwarf Galaxy, one of the least luminous galaxies with an absolute magnitude of −8.6 and a diameter of only about 3,500 light years, discovered by Albert G. Wilson of Lowell Observatory in 1954. | One of the deep-sky objects in Draco is the Cat's Eye Nebula (NGC 6543), a planetary nebula approximately 3,000 light-years away that was discovered by English astronomer William Herschel in 1786.There are several faint galaxies in Draco, one of which is the lenticular galaxy NGC 5866, sometimes considered to be [[Messier 102]]. Another is the Draco Dwarf Galaxy, one of the least luminous galaxies with an absolute magnitude of −8.6 and a diameter of only about 3,500 light years, discovered by Albert G. Wilson of Lowell Observatory in 1954. | ||
The Hercules–Corona Borealis Great Wall, the largest known structure in the universe, covers a part of the southern region of Draco.<ref>[[http://en.wikipedia.org/wiki/Draco_(constellation)]]</ref> | The Hercules–Corona Borealis Great Wall, the largest known structure in the universe, covers a part of the southern region of Draco.<ref>[[http://en.wikipedia.org/wiki/Draco_(constellation) Draco]]</ref> | ||
==Mythology== | ==Mythology== | ||