File:Messier 60 - Hubble (2013-9-24).jpg
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原始文件 （3,600 × 3,600像素，文件大小：8.38 MB，MIME类型：image/jpeg）
摘要
| 描述 |
English: The galaxy known as M60-UCD1 (bright white circle near bottom edge, just to the left of center) is located near a massive elliptical galaxy NGC 4649, also called M60, about 54 million light-years from Earth. This image shows M60 and the region around it. Packed with an extraordinary number of stars, M60-UCD1 is an "ultra-compact dwarf galaxy." It is one of the most massive galaxies of its kind, weighing 200 million times more than our Sun, based on observations with the Keck 10-meter telescope in Hawaii. Remarkably, about half of this mass is found within a radius of only about 80 light-years. This would make the density of stars about 15,000 times greater than found in Earth's neighborhood in the Milky Way, meaning that the stars are about 25 times closer. |
| 日期 | |
| 来源 | HubbleSite: NewsCenter |
| 作者 | NASA, ESA, CXC, and J. Strader (Michigan State University) |
| 其他版本 |
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许可协议
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This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.
The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org. For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag. |
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| 日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
|---|---|---|---|---|---|
| 当前 | 2013年10月4日 (五) 22:35 | | 3,600 × 3,600（8.38 MB） | Melikamp | User created page with UploadWizard |
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