by APOD Robot » Thu Jul 03, 2014 4:18 am
Along the Cygnus Wall
Explanation: The prominent ridge of emission featured in
this vivid skyscape is known as the Cygnus Wall. Part of a larger
emission nebula with a distinctive shape popularly called
The North America Nebula, the ridge spans about 10 light-years along an outline that suggests the western coast of Mexico. Constructed from narrowband image data, the cosmic close-up
maps emission from sulfur, hydrogen, and oxygen atoms to red, green, and blue colors. The result highlights the bright
ionization front with fine details of dark, dusty forms in silhouette.
Sculpted by energetic radiation from the region's young, hot, massive stars, the dark shapes inhabiting the view are clouds of cool gas and dust with stars likely forming within. The North America Nebula itself, NGC 7000, is about 1,500 light-years away.
To find it, look northeast of bright
star Deneb in the high flying constellation Cygnus.
[/b]
[url=http://apod.nasa.gov/apod/ap140703.html][img]http://apod.nasa.gov/apod/calendar/S_140703.jpg[/img] [size=150]Along the Cygnus Wall[/size][/url]
[b] Explanation: [/b] The prominent ridge of emission featured in [url=http://www.martinpughastrophotography.id.au/images/CygnusWall.jpg]this vivid skyscape[/url] is known as the Cygnus Wall. Part of a larger [url=http://www.noao.edu/image_gallery/emission_nebulae.html]emission nebula[/url] with a distinctive shape popularly called [url=http://apod.nasa.gov/apod/ap130903.html]The North America Nebula[/url], the ridge spans about 10 light-years along an outline that suggests the western coast of Mexico. Constructed from narrowband image data, the cosmic close-up [url=http://hubblesite.org/gallery/behind_the_pictures/meaning_of_color/eagle.php]maps emission[/url] from sulfur, hydrogen, and oxygen atoms to red, green, and blue colors. The result highlights the bright [url=http://csep10.phys.utk.edu/astr162/lect/light/ionization.html]ionization front[/url] with fine details of dark, dusty forms in silhouette. [url=http://apod.nasa.gov/apod/ap071215.html]Sculpted by[/url] energetic radiation from the region's young, hot, massive stars, the dark shapes inhabiting the view are clouds of cool gas and dust with stars likely forming within. The North America Nebula itself, NGC 7000, is about 1,500 light-years away. [url=http://apod.nasa.gov/apod/ap070702.html]To find[/url] it, look northeast of bright [url=http://apod.nasa.gov/apod/ap070920.html]star Deneb[/url] in the high flying constellation Cygnus.
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