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主題: 北美洲星雲Changing Face of the North America Nebula 作者: cuteip 於 2011-12-10 06:57:16 底下這一張由wiki引用的
原始網址 http://en.wikipedia.org/wiki/File:Changing_Face_of_the_North_America_Nebula.jpg (http://upload.wikimedia.org/wikipedia/commons/thumb/7/78/Changing_Face_of_the_North_America_Nebula.jpg/599px-Changing_Face_of_the_North_America_Nebula.jpg) 原文 English: This image layout reveals how the appearance of the North America nebula can change dramatically using different combinations of visible and infrared observations from the Digitized Sky Survey and NASA's Spitzer Space Telescope, respectively. In this progression, the visible-light view (upper left) shows a striking similarity to the North America continent. The image highlights the eastern seaboard and Gulf of Mexico regions. The red region to the right is known as the "Pelican nebula," after its resemblance in visible light to a pelican. The view at upper right includes both visible and infrared observations. The hot gas comprising the North America continent and the Pelican now takes on a vivid blue hue, while red colours display the infrared light. Inky black dust features start to glow in the infrared view. In the bottom two images, only infrared light from Spitzer is shown -- data from the infrared array camera is on the left, and data from both the infrared array camera and the multi-band imaging photometer, which sees longer wavelengths, is on the right. These pictures look different in part because infrared light can penetrate dust whereas visible light cannot. Dusty, dark clouds in the visible image become transparent in Spitzer's view. In addition, Spitzer's infrared detectors pick up the glow of dusty cocoons enveloping baby stars. Bing翻譯 英語： 此圖像佈局顯示北美星雲的外觀如何更改顯著分別使用可見光和紅外線觀測數位化巡和 NASA 的斯皮策太空望遠鏡，從不同的組合。 這一進展，（左上角） 的可見光視圖將顯示到北美大陸的驚人的相似。東海岸和墨西哥灣地區，突出顯示圖像。向右的紅色區域稱為"鵜鶘星雲"後其在可見光到鵜鶘的相似之處。 在右上角視圖包括可見光和紅外線觀測。現在包括北美大陸和鵜熱氣體就生動的藍色色調，而紅顏色顯示的紅外線。漆黑的黑色粉塵功能開始在視圖中紅外發光。 在底部兩個圖像中，只有紅光從斯皮策顯示 — — 從紅外陣列照相機的資料是在左邊，和從紅外攝像機和多波段成像分光光度計，認為更長的波長，資料是在右邊。這些圖片看不同，部分因為紅外燈可以穿透塵而不可見光。塵土飛揚、 暗雲變得透明，斯皮策的視圖中的可見光圖像。此外，斯皮策的紅外探測器撿起塵土飛揚繭包絡嬰兒星星的發光。 我們應該沒辦法拍成這樣啦! 欣賞 欣賞 有大圖可做成桌布喔! 看來看去只有左上角是熟悉的 |