File:The Cat's Eye Nebula (9464528703).jpg
![File:The Cat's Eye Nebula (9464528703).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/7/7a/The_Cat%27s_Eye_Nebula_%289464528703%29.jpg/600px-The_Cat%27s_Eye_Nebula_%289464528703%29.jpg?20150927133640)
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Summary
[edit]DescriptionThe Cat's Eye Nebula (9464528703).jpg |
(September 18, 1994) This NASA Hubble Space Telescope image shows one of the most complex planetary nebulae ever seen, NGC 6543, nicknamed the "Cat's Eye Nebula." Hubble reveals surprisingly intricate structures including concentric gas shells, jets of high-speed gas and unusual shock-induced knots of gas. Estimated to be 1,000 years old, the nebula is a visual "fossil record" of the dynamics and late evolution of a dying star. A preliminary interpretation suggests that the star might be a double-star system. The suspected companion star also might be responsible for a pair of high-speed jets of gas that lie at right angles to this equatorial ring. If the companion were pulling in material from a neighboring star, jets escaping along the companion's rotation axis could be produced. These jets would explain several puzzling features along the periphery of the gas lobes. Like a stream of water hitting a sand pile, the jets compress gas ahead of them, creating the "curlicue" features and bright arcs near the outer edge of the lobes. The twin jets are now pointing in different directions than these features. This suggests the jets are wobbling, or precessing, and turning on and off episodically. This color picture, taken with the Wide Field Planetary Camera-2, is a composite of three images taken at different wavelengths. (red, hydrogen-alpha; blue, neutral oxygen, 6300 angstroms; green, ionized nitrogen, 6584 angstroms). The image was taken on September 18, 1994. NGC 6543 is 3,000 light- years away in the northern constellation Draco. The term planetary nebula is a misnomer; dying stars create these cocoons when they lose outer layers of gas. The process has nothing to do with planet formation, which is predicted to happen early in a star's life. Image # : PRC95-01A |
Date | |
Source | The Cat's Eye Nebula |
Author | NASA on The Commons |
Permission (Reusing this file) |
NASA on The Commons @ Flickr Commons |
Licensing
[edit]This image was taken from Flickr's The Commons. The uploading organization may have various reasons for determining that no known copyright restrictions exist, such as: No known copyright restrictionsNo restrictionshttps://www.flickr.com/commons/usage/false
More information can be found at https://flickr.com/commons/usage/. Please add additional copyright tags to this image if more specific information about copyright status can be determined. See Commons:Licensing for more information. |
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This image was originally posted to Flickr by NASA on The Commons at https://flickr.com/photos/44494372@N05/9464528703. It was reviewed on 27 September 2015 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions. |
27 September 2015
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Metadata
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Author | NASA/ Goddard Space Flight Center - Space Telescope Science Institute |
Date and time of data generation | 00:00, 18 September 1994 |
Credit/Provider | NASA |
Source | NASA |
Online copyright statement | http://www.nasa.gov/audience/formedia/features/MP_Photo_Guidelines.html#.Ue6Pwj3piSo |
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Width | 800 px |
Height | 800 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 150 dpi |
Vertical resolution | 150 dpi |
Software used | Adobe Photoshop CS6 (Windows) |
File change date and time | 00:00, 18 September 1994 |
Exif version | 2.21 |
Date and time of digitizing | 00:00, 18 September 1994 |
Color space | sRGB |
Unique ID of original document | E5A78745FB2B5AE510049EDD03E5593D |
Date metadata was last modified | 06:33, 23 July 2013 |
Copyright status | Copyright status not set |
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IIM version | 4 |