File:Deep View of the Large and Small Magellanic Clouds.jpg
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外觀
![File:Deep View of the Large and Small Magellanic Clouds.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/2/2d/Deep_View_of_the_Large_and_Small_Magellanic_Clouds.jpg/800px-Deep_View_of_the_Large_and_Small_Magellanic_Clouds.jpg)
預覽大小:800 × 551 像素。 其他解析度:320 × 220 像素 | 640 × 440 像素 | 1,024 × 705 像素 | 1,280 × 881 像素 | 2,560 × 1,762 像素 | 3,599 × 2,477 像素。
原始檔案 (3,599 × 2,477 像素,檔案大小:4.78 MB,MIME 類型:image/jpeg)
摘要
描述Deep View of the Large and Small Magellanic Clouds.jpg |
English: Each of the thousands of spots in this new image represents a distant star, and the glittering blue holes reveal glimpses of our neighbouring galaxies, the Large and Small Magellanic Clouds. Although this image looks as if it was made on a large scale telescope it was in fact captured from ESO’s La Silla Observatory using a portable setup consisting of a SBIG STL-11000M CCD camera and a Canon prime lens. It was presented in a scientific paper alongside state-of-the art simulations, in an exciting example of how a small camera, a fast lens, a long exposure time and one of the world’s best astronomical sites can reveal huge faint features better than even a big telescope.
This deep image was captured using the LRGB method, and provides an insight into the actual process of creating spectacular astrophotography. Many challenges face those attempting to photograph the night sky, including interference from light sources other than the object being photographed, and capturing objects in sufficient depth. Trying to maximise the signal received from the target, whilst minimising input from other sources — known as noise — is a crucial aspect of astrophotography. The optimisation of the signal to noise ratio is far more easily achieved in black-and-white than in colour. Therefore a clever trick often employed to capture a high-quality image is the use of a luminance exposure, which produces richly detailed monochrome images like the one seen here. Colour details from images taken through colour filters can then be overlaid or inset, as the Magellanic Clouds have been here. |
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來源 | http://www.eso.org/public/images/potw1630a/ |
作者 | Y. Beletsky (LCO), D. Martinez-Delgado/ESO |
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描繪內容
25 7 2016
多媒體型式 繁體中文 (已轉換拼寫)
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日期/時間 | 縮圖 | 尺寸 | 用戶 | 備註 | |
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目前 | 2024年2月14日 (三) 12:02 | ![]() | 3,599 × 2,477(4.78 MB) | C messier | full size |
2016年7月25日 (一) 08:56 | ![]() | 1,280 × 881(607 KB) | Jmencisom | User created page with UploadWizard |
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製作/提供者 | Y. Beletsky (LCO), D. Martinez-Delgado/ESO |
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來源 | European Southern Observatory |
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使用條款 |
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資料產生的日期時間 | 2016年7月25日 (一) 06:00 |
JPEG 檔案備註 | Each of the thousands of spots in this new image represents a distant star, and the glittering blue holes reveal glimpses of our neighbouring galaxies, the Large and Small Magellanic Clouds. Although this image looks as if it was made on a large scale telescope it was in fact captured from ESO’s La Silla Observatory using a portable setup consisting of a SBIG STL-11000M CCD camera and a Canon prime lens. It was presented in a scientific paper alongside state-of-the art simulations, in an exciting example of how a small camera, a fast lens, a long exposure time and one of the world’s best astronomical sites can reveal huge faint features better than even a big telescope. This deep image was captured using the LRGB method, and provides an insight into the actual process of creating spectacular astrophotography. Many challenges face those attempting to photograph the night sky, including interference from light sources other than the object being photographed, and capturing objects in sufficient depth. Trying to maximise the signal received from the target, whilst minimising input from other sources — known as noise — is a crucial aspect of astrophotography. The optimisation of the signal to noise ratio is far more easily achieved in black-and-white than in colour. Therefore a clever trick often employed to capture a high-quality image is the use of a luminance exposure, which produces richly detailed monochrome images like the one seen here. Colour details from images taken through colour filters can then be overlaid or inset, as the Magellanic Clouds have been here. Link: Science Paper |
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聯絡資訊 |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
IIM 版本 | 4 |