File:M51 whirlpool galaxy black hole.jpg

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描述 The nucleus of the Whirlpool Galaxy (M51). The location of the black hole at the center of the galaxy. The cross was first interpreted as two dust rings circling the nucleus. It was later determined to simply be foreground dust lanes silhouetted by the active nucleus. Bright ionization cones can be seen extending perpendicular to the largest dust feature.
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来源 http://hubblesite.org/newscenter/newsdesk/archive/releases/1992/17/image/a
作者 Stephen Conatser
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(二次使用本文件)		 http://hubblesite.org/copyright/

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Public domain This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.
The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org. For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag.


The nucleus of the Whirlpool Galaxy (M51). The Cross marks the location of the black hole at the center of the galaxy. The Cross is formed by two dust rings. Bright ionization cones can be seen extending perpendicular to the largest dust ring.

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当前2006年8月7日 (一) 17:232006年8月7日 (一) 17:23版本的缩略图2,169 × 2,025（93 KB）Epolk{{Information |Description=The nucleus of the Whirlpool Galaxy (M51). The X marks the location of the black hole at the center of the galaxy. The X is formed by two dust rings. Bright ionization cones can be seen extending perpindicular to the largest d

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