File:Ssc2006-21a.jpg
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Summary
[edit]DescriptionSsc2006-21a.jpg |
English: NASA's Spitzer and Hubble Space Telescopes have teamed up to expose the chaos that baby stars are creating 1,500 light-years away in a cosmic cloud called the Orion Nebula.
This striking infrared and visible-light composite indicates that four monstrously massive stars at the center of the cloud may be the main culprits in the familiar Orion constellation. The stars are collectively called the "Trapezium." Their community can be identified as the yellow smudge near the center of the image. Swirls of green in Hubble's ultraviolet and visible-light view reveal hydrogen and sulfur gas that have been heated and ionized by intense ultraviolet radiation from the Trapezium's stars. Meanwhile, Spitzer's infrared view exposes carbon-rich molecules called polycyclic aromatic hydrocarbons in the cloud. These organic molecules have been illuminated by the Trapezium's stars, and are shown in the composite as wisps of red and orange. On Earth, polycyclic aromatic hydrocarbons are found on burnt toast and in automobile exhaust. Together, the telescopes expose the stars in Orion as a rainbow of dots sprinkled throughout the image. Orange-yellow dots revealed by Spitzer are actually infant stars deeply embedded in a cocoon of dust and gas. Hubble showed less embedded stars as specks of green, and foreground stars as blue spots. Stellar winds from clusters of newborn stars scattered throughout the cloud etched all of the well-defined ridges and cavities in Orion. The large cavity near the right of the image was most likely carved by winds from the Trapezium's stars. Located 1,500 light-years away from Earth, the Orion Nebula is the brightest spot in the sword of the Orion, or the "Hunter" constellation. The cosmic cloud is also our closest massive star-formation factory, and astronomers believe it contains more than 1,000 young stars. The Orion constellation is a familiar sight in the fall and winter night sky in the northern hemisphere. The nebula is invisible to the unaided eye, but can be resolved with binoculars or small telescopes. This image is a false-color composite where light detected at wavelengths of 0.43, 0.50, and 0.53 microns is blue. Light at wavelengths of 0.6, 0.65, and 0.91 microns is green. Light at 3.6 microns is orange, and 8.0 microns is red. |
Date | |
Source | http://www.spitzer.caltech.edu/images/1690-ssc2006-21a-Chaos-at-the-Heart-of-Orion |
Author | NASA/JPL-Caltech/T. Megeath (University of Toledo) & M. Robberto (STScI) |
Permission (Reusing this file) |
http://www.spitzer.caltech.edu/info/18-Image-Use-Policy http://www.spitzer.caltech.edu/Media/mediaimages/copyright.shtml |
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.) | ||
Warnings:
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This file, which was originally posted to
spitzer.caltech.edu, was reviewed on 4 March 2018 by reviewer Taivo, who confirmed that it was available there under the stated license on that date.
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Individual images
[edit]see http://gallery.spitzer.caltech.edu/Imagegallery/image.php?image_name=ssc2003-06i High quality tif files also avaliable.
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:10, 8 November 2006 | 2,400 × 3,000 (1.2 MB) | Winiar (talk | contribs) | {{Information |Description=Orion Nebula picture made from imagest taken by Hubble and Spitzer telescopes (false-color composite where light detected at wavelengths of 0.43, 0.50, and 0.53 microns is blue. Light at wavelengths of 0.6, 0.65, and 0.91 micron |
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Width | 2,400 px |
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Height | 3,000 px |
Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 14:35, 6 November 2006 |
Color space | Uncalibrated |