File:Ssc2006-16b.jpg
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![File:Ssc2006-16b.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/5/50/Ssc2006-16b.jpg/480px-Ssc2006-16b.jpg)
原始文件 (2,400 × 3,000像素,文件大小:2.44 MB,MIME类型:image/jpeg)
摘要
This infrared image from NASA's Spitzer Space Telescope shows the Orion nebula, our closest massive star-making factory, 1,450 light-years from Earth. The nebula is close enough to appear to the naked eye as a fuzzy star in the sword of the popular hunter constellation.
The nebula itself is located on the lower half of the image, surrounded by a ring of dust. It formed in a cold cloud of gas and dust and contains about 1,000 young stars. These stars illuminate the cloud, creating the beautiful nebulosity, or swirls of material, seen here in infrared.
In the center of the nebula (bottom inset) are four monstrously massive stars, up to 100,000 times as luminous as our sun, called the Trapezium (tiny yellow smudge to the lower left of green splotches). Radiation and winds from these stars are blasting gas and dust away, excavating a cavity walled in by the large ring of dust.
Behind the Trapezium, still buried deeply in the cloud, a second generation of massive stars is forming (in the area with green splotches). The speckled green fuzz in this bright region is created when bullets of gas shoot out from the juvenile stars and ram into the surrounding cloud.
Above this region of intense activity are networks of cold material that appear as dark veins against the pinkish nebulosity (upper inset). These dark veins contain embryonic stars. Some of the natal stars illuminate the cloud, creating small, aqua-colored wisps. In addition, jets of gas from the stars ram into the cloud, resulting in the green horseshoe-shaped globs.
Spitzer surveyed a significant swath of the Orion constellation, beyond what is highlighted in this image. Within that region, called the Orion cloud complex, the telescope found 2,300 stars circled by disks of planet-forming dust and 200 stellar embryos too young to have developed disks.
This image shows infrared light captured by Spitzer's infrared array camera. Light with wavelengths of 8 and 5.8 microns (red and orange) comes mainly from dust that has been heated by starlight. Light of 4.5 microns (green) shows hot gas and dust; and light of 3.6 microns (blue) is from starlight.
File info
描述Ssc2006-16b.jpg | The Sword of Orion |
日期 | February 16 and 18, 2004, March 9, 2004, October 8, 12, and 27, 2004 |
来源 | http://gallery.spitzer.caltech.edu/Imagegallery/image.php?image_name=ssc2006-16b |
作者 | NASA/JPL-Caltech/T. Megeath (University of Toledo) |
授权 (二次使用本文件) |
http://www.spitzer.caltech.edu/Media/mediaimages/copyright.shtml |
Individual images
see http://gallery.spitzer.caltech.edu/Imagegallery/image.php?image_name=ssc2006-16b High quality tif files also avaliable.
许可协议
Public domainPublic domainfalsefalse |
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本文件完全由NASA创作,在美国属于公有领域。根据NASA的版权方针,NASA的材料除非另有声明否则不受版权保护。(参见Template:PD-USGov/zh、NASA版权方针页面或JPL图片使用方针。) | ![]() |
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日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
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当前 | 2007年7月11日 (三) 19:30 | ![]() | 2,400 × 3,000(2.44 MB) | Anzibanonzi | ==Summary== This infrared image from NASA's Spitzer Space Telescope shows the Orion nebula, our closest massive star-making factory, 1,450 light-years from Earth. The nebula is close enough to appear to the naked eye as a fuzzy star in the sword of the po |
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宽度 | 2,400 px |
---|---|
高度 | 3,000 px |
压缩方案 | LZW |
像素构成 | RGB |
方向 | 正常 |
色彩组分数 | 3 |
水平分辨率 | 300 dpi |
垂直分辨率 | 300 dpi |
数据排布 | 大块格式 |
使用软件 | Adobe Photoshop CS2 Macintosh |
文件修改日期时间 | 2006年8月8日 (二) 14:10 |
色彩空间 | 未标定 |