Pelikan Nebel: Unterschied zwischen den Versionen
Gerard (Diskussion | Beiträge) K (→External links) Markierung: Zurückgesetzt |
Gerard (Diskussion | Beiträge) K (Änderung 240202 von Gerard (Diskussion) rückgängig gemacht.) Markierung: Rückgängigmachung |
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# [http://apod.nasa.gov/apod/ap071019.html IC 5067 in the Pelican Nebula] | # [http://apod.nasa.gov/apod/ap071019.html IC 5067 in the Pelican Nebula] | ||
# [http://apod.nasa.gov/apod/ap070920.html Northern Cygnus] | # [http://apod.nasa.gov/apod/ap070920.html Northern Cygnus] | ||
* [http://www.atlasoftheuniverse.com/nebulae/ngc7000.html Atlas of the Universe] | |||
* [https://web.archive.org/web/20100619043259/http://www.imagingtheuniverse.com/Nebulae/Canon-400D/9492185_FsvbH#637454437_Es6ha Image by Arran Hill] | |||
Version vom 12. August 2023, 13:09 Uhr
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The Pelican Nebula (also known as IC 5070 and IC 5067[1]) is an H II region associated with the North America Nebula in the constellation Cygnus. The gaseous contortions of this emission nebula bear a resemblance to a pelican, giving rise to its name.[1] The Pelican Nebula is located nearby first magnitude star Deneb, and is divided from its more prominent neighbour, the North America Nebula, by a foreground molecular cloud filled with dark dust.[2] Both are part of the larger H II region of Westerhout 40.[2]
The Pelican is much studied because it has a particularly active mix of star formation and evolving gas clouds. The light from young energetic stars is slowly transforming cold gas to hot and causing an ionization front gradually to advance outward. Particularly dense filaments of cold gas are seen to still remain, and among these are found two jets emitted from the Herbig–Haro object 555.[1] Millions of years from now this nebula might no longer be known as the Pelican, as the balance and placement of stars and gas will leave something that appears completely different.