by APOD Robot » Thu Oct 30, 2014 4:06 am
A Spectre in the Eastern Veil
Explanation: Frightening forms and scary faces are a mark of the Halloween season. They also haunt
this cosmic close-up of the eastern Veil Nebula.
The Veil Nebula itself is a large supernova remnant, the expanding debris cloud from the death explosion of a massive star. While the Veil is roughly circular in shape and covers nearly 3 degrees on the sky in the constellation Cygnus, this portion of the eastern Veil spans only 1/2 degree, about the apparent size
of the Moon. That
translates to 12 light-years at the Veil's estimated distance, a reassuring 1,400 light-years from planet Earth. In the composite of image data recorded through broad and
narrow band filters, emission from hydrogen atoms in the remnant is shown in red with strong emission from oxygen atoms in blue-green hues. Of course, in the western part of the Veil lies another seasonal apparition,
the Witch's Broom.
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[url=http://apod.nasa.gov/apod/ap141030.html][img]http://apod.nasa.gov/apod/calendar/S_141030.jpg[/img] [size=150]A Spectre in the Eastern Veil[/size][/url]
[b] Explanation: [/b] [url=http://www.nasa.gov/content/goddard/sdo-jack-o-lantern-sun/]Frightening[/url] forms and scary faces are a mark of the Halloween season. They also haunt [url=http://www.imagingdeepsky.com/Nebulae/NGC6995/NGC6995.htm]this cosmic close-up[/url] of the eastern Veil Nebula. [url=http://apod.nasa.gov/apod/ap100916.html]The Veil Nebula[/url] itself is a large supernova remnant, the expanding debris cloud from the death explosion of a massive star. While the Veil is roughly circular in shape and covers nearly 3 degrees on the sky in the constellation Cygnus, this portion of the eastern Veil spans only 1/2 degree, about the apparent size [url=http://apod.nasa.gov/apod/ap130801.html]of the Moon[/url]. That [url=http://chandra.harvard.edu/photo/scale_distance.html]translates[/url] to 12 light-years at the Veil's estimated distance, a reassuring 1,400 light-years from planet Earth. In the composite of image data recorded through broad and [url=http://apod.nasa.gov/apod/ap071102.html]narrow band[/url] filters, emission from hydrogen atoms in the remnant is shown in red with strong emission from oxygen atoms in blue-green hues. Of course, in the western part of the Veil lies another seasonal apparition, [url=http://apod.nasa.gov/apod/ap130529.html]the Witch's Broom[/url].
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