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原始文件 (1,789 × 1,929像素,文件大小:2.62 MB,MIME类型:image/jpeg


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English: The largest member of the galaxy group known as Roberts Quartet is NGC 92, a spiral Sa galaxy with an unusual appearance. One of its arms, about 100,000 light-years long, has been distorted by interactions and contains a large quantity of dust. Using this H-alpha image obtained with FORS2 on the VLT, astronomers were able to study the properties of regions of active star formation ("HII regions"). They found more than 200 of such regions in NGC 92, with a size between 500 and 1,500 light-years.

ID: phot-34b-05

Press: 34/05

Object: NGC 92

Instrument: FORS2

Size: 1789x1929

Credit: ESO
日期 Wed 04 Feb 2009 14:10:11 CET
来源 http://www.eso.org/gallery/v/ESOPIA/Galaxies/phot-34b-05-fullres.jpg.html
作者 ESO

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当前2009年4月28日 (二) 19:562009年4月28日 (二) 19:56版本的缩略图1,789 × 1,929(2.62 MB)Fabian RRRR{{Information |Description={{en|1=The largest member of the galaxy group known as Robert''s Quartet is NGC 92, a spiral Sa galaxy with an unusual appearance. One of its arms, about 100,000 light-years long, has been distorted by interactions and contains

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