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File:HubbleTuningFork.jpg

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摘要

描述
English: Galaxies are very important fundamental building blocks of the Universe. Some are simple, while others are very complex in structure. As one of the first steps towards a coherent theory of galaxy evolution, the American astronomer Edwin Hubble, developed a classification scheme of galaxies in 1926. Although this scheme, also known as the Hubble tuning fork diagram, is now considered somewhat too simple, the basic ideas still hold...
Čeština: Galaxie jsou velmi důležitými základními stavebními kvádry vesmíru. Některé galaxie jsou jednoduché, jiné jsou velmi složitě členěné. Jedním z prvních kroků ke vzniku soustavné teorie o vývoji galaxií bylo klasifikační schéma galaxií, které v roce 1926 vyvinul americký astronom Edwin Hubble. Takzvaná Hubbleova ladička byla později rozšířena o další typy galaxií, původní myšlenka však stále přetrvává.
日期

2007年9月17日 (原始上传日期)

(Original text: October 6, 1999)
来源 Transferred from en.wikipedia to Commons.
作者

原上传者为英语维基百科的Cosmo0

(Original text: None given)
其他版本 Derivative works of this file:  HubbleTuningFork rus.jpg

许可协议

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.


原始上传日志

The original description page was here. All following user names refer to en.wikipedia.
  • 2007-09-17 14:51 Cosmo0 850×700×8 (131124 bytes) From press-release text: Galaxies are very important fundamental building blocks of the Universe. Some are simple, while others are very complex in structure. As one of the first steps towards a coherent theory of galaxy evolution, the American astronomer

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