File:NGC5585_-_HST_-_Potw2038a.tif
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![File:NGC5585 - HST - Potw2038a.tif](http://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/NGC5585_-_HST_-_Potw2038a.tif/lossy-page1-587px-NGC5585_-_HST_-_Potw2038a.tif.jpg)
原始文件 (6,568 × 6,709像素,文件大小:89.52 MB,MIME类型:image/tiff)
摘要
描述NGC5585 - HST - Potw2038a.tif |
English: Dark Matter Surplus
The many stars, and dust and gas clouds that make up NGC 5585, shown here in this Hubble image, contribute only a small fraction of the total mass of the galaxy. As in many galaxies, this discrepancy can be explained by the abundant yet seemingly invisible presence of dark matter. The stellar disc of the galaxy extends over 35 000 light-years across. When compared with galaxies of a similar shape and size, NGC 5585 stands out by having a notably different composition: Contributing to the total mass of the galaxy, it contains a far higher proportion of dark matter. Hotspots of star formation can be seen along the galaxy’s faint spiral arms. These regions shine a brilliant blue, contrasting strikingly against the ever-black background of space. Credit: ESA/Hubble & NASA, R. Tully Acknowledgement: Gagandeep Anand Coordinates Position (RA): 14 19 49.61 Position (Dec): 56° 43' 33.93" Field of view: 3.28 x 3.35 arcminutes Orientation: North is 117.6° right of vertical Colours & filters Band Wavelength Telescope Optical V 606 nm Hubble Space Telescope ACS Optical I 814 nm Hubble Space Telescope ACS. |
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日期 | ||||
来源 | https://spacetelescope.org/images/potw2038a/ | |||
作者 | Credit: ESA/Hubble & NASA, R. Tully, Acknowledgement: Gagandeep Anand | |||
授权 (二次使用本文件) |
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说明
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知识共享署名4.0国际 简体中文(已转写)
21 9 2020
媒体类型 简体中文(已转写)
image/tiff
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当前 | 2020年9月21日 (一) 12:32 | ![]() | 6,568 × 6,709(89.52 MB) | Fabian RRRR | {{Information |description ={{en|1='''Dark Matter Surplus Resting on the tail of the Great Bear in the constellation of Ursa Major, lies NGC 5585, a spiral galaxy that is more than it appears. The many stars, and dust and gas clouds that make up NGC 5585, shown here in this Hubble image, contribute only a small fraction of the total mass of the galaxy. As in many galaxies, this discrepancy can be explained by the abundant yet seemingly invisible presence of dark matter. The stellar disc... |
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数据生成日期时间 | 2020年1月19日 (日) 16:04 |
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宽度 | 6,568 px |
高度 | 6,709 px |
每色彩组分位数 |
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压缩方案 | LZW |
像素构成 | RGB |
方向 | 正常 |
色彩组分数 | 3 |
每带行数 | 13 |
水平分辨率 | 240 dpi |
垂直分辨率 | 240 dpi |
数据排布 | 大块格式 |
使用软件 | Adobe Photoshop 21.2 (Windows) |
文件修改日期时间 | 2020年9月2日 (三) 10:09 |
Exif版本 | 2.31 |
色彩空间 | sRGB |