File:Heic0414b.tif
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[edit]DescriptionHeic0414b.tif |
English: An enormous but extremely faint halo of gaseous material surrounds the Cat's Eye Nebula and is over three light-years across. Within the past years some planetary nebulae been found to have halos like this one, likely formed of material ejected during earlier active episodes in the star's evolution - most likely some 50,000 to 90,000 years ago.
This image was taken by Romano Corradi with the Nordic Optical Telescope on La Palma in the Canary Islands. The image is constructed from two narrow-band exposures showing oxygen atoms (1800 seconds, in blue) and nitrogen atoms (1800 seconds, in red). |
Source | http://www.spacetelescope.org/images/heic0414b/ |
Author | Credit: Nordic Optical Telescope and Romano Corradi (Isaac Newton Group of Telescopes, Spain) |
Licensing
[edit]Public domainPublic domainfalsefalse |
This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 23:06, 22 April 2009 | 2,048 × 2,048 (4.59 MB) | Fabian RRRR (talk | contribs) | {{Information |Description={{en|1=An enormous but extremely faint halo of gaseous material surrounds the Cat's Eye Nebula and is over three light-years across. Within the past years some planetary nebulae been found to have halos like this one, likely for |
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Width | 2,048 px |
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Height | 2,048 px |
Compression scheme | LZW |
Pixel composition | RGB |
Number of components | 3 |
Number of rows per strip | 42 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CS Windows |
File change date and time | 14:29, 7 September 2004 |
Color space | Uncalibrated |
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