美国航空航天局图片:每日图片库 -凡恒星诞生

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美国航空航天局图片:每日图片库 -凡恒星诞生
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Found among the Small Magellanic Cloud's clusters and nebulae
NGC 346 is a star-forming region about 200 light-years across,
pictured above by the Hubble Space Telescope.
This image, like many Hubble images, has a curious stair-step shape.These images come from a scientific instrument called the Wide Field and Planetary Camera 2, or WFPC2 -- which was removed from the telescope in mid-2009.It is WFPC2's unique design that underlies the oddly-shaped images in Hubble's portfolio.