File:Ssc2005-11a.jpg
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[編輯]描述Ssc2005-11a.jpg |
English: NASA's Spitzer and Hubble Space Telescopes joined forces to create this striking composite image of one of the most popular sights in the universe. Messier 104 is commonly known as the Sombrero galaxy because in visible light, it resembles the broad-brimmed Mexican hat. However, in Spitzer's striking infrared view, the galaxy looks more like a "bull's eye."
In Hubble's visible light image (lower left panel), only the near rim of dust can be clearly seen in silhouette. Recent observations using Spitzer's infrared array camera (lower right panel) uncovered the bright, smooth ring of dust circling the galaxy, seen in red. Spitzer's infrared view of the starlight, piercing through the obscuring dust, is easily seen, along with the bulge of stars and an otherwise hidden disk of stars within the dust ring. Spitzer's full view shows the disk is warped, which is often the result of a gravitational encounter with another galaxy, and clumpy areas spotted in the far edges of the ring indicate young star-forming regions. The Sombrero galaxy is located some 28 million light-years away. Viewed from Earth, it is just six degrees south of its equatorial plane. Spitzer detected infrared emission not only from the ring, but from the center of the galaxy too, where there is a huge black hole, believed to be a billion times more massive than our Sun. The Spitzer picture is composed of four images taken at 3.6 (blue), 4.5 (green), 5.8 (orange), and 8.0 (red) microns. The contribution from starlight (measured at 3.6 microns) has been subtracted from the 5.8 and 8-micron images to enhance the visibility of the dust features. The Hubble Heritage Team took these observations in May-June 2003 with the space telescope's Advanced Camera for Surveys. Images were taken in three filters (red, green, and blue) to yield a natural-color image. The team took six pictures of the galaxy and then stitched them together to create the final composite image. This magnificent galaxy has a diameter that is nearly one-fifth the diameter of the full Moon. |
日期 |
2003年5月 - 2005年1月 date QS:P,+2003-00-00T00:00:00Z/8,P1319,+2003-05-00T00:00:00Z/10,P1326,+2005-01-00T00:00:00Z/10 |
來源 | http://www.spitzer.caltech.edu/images/1419-ssc2005-11a-Spitzer-Spies-Spectacular-Sombrero |
作者 |
Spitzer (infrared): NASA/JPL-Caltech/R. Kennicutt (University of Arizona), and the SINGS Team Hubble (visible): NASA/Hubble Heritage Team |
許可 (重用呢個檔案) |
http://www.spitzer.caltech.edu/Media/mediaimages/copyright.shtml |
協議
[編輯]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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日期/時間 | 縮圖 | 尺寸 | 用戶 | 註解 | |
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現時 | 2007年7月9號 (一) 22:10 | 3,000 × 2,700(4.47 MB) | Anzibanonzi(傾偈 | 貢獻) | ==Summary== NASA's Spitzer and Hubble Space Telescopes joined forces to create this striking composite image of one of the most popular sights in the universe. Messier 104 is commonly known as the Sombrero galaxy because in visible light, it resembles the |
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圖名 | IDL TIFF file |
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攞放方向 | 正常 |
橫解像度 | 300 dpi |
直解像度 | 300 dpi |
用過嘅軟件 | Adobe Photoshop 7.0 |
檔案更動日期時間 | 2005年5月3號 (二) 10:21 |
色彩空間 | 未校啱色 |