Seyfert galaxy: References & Edit History
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Invalidated site: The Hopkins Ultraviolet Telescope Project - Seyfert Galaxies. | Jan 09, 2018 | ||
| Added new Web site: The Internet Encyclopedia of Science - Seyfert galaxy. | Jan 05, 2009 | ||
| Added new Web site: Students for the Exploration and Development of Space - Seyfert Galaxies. | Jan 05, 2009 | ||
| Added new Web site: The Hopkins Ultraviolet Telescope Project - Seyfert Galaxies. | Jan 05, 2009 | ||
| Added new Web site: Astronomical Society of Australia - The Seyfert Galaxy. | Jan 05, 2009 | ||
| Media added. | Apr 30, 2008 | ||
| Article revised and updated. | Dec 12, 2007 | ||
| Article added to new online database. | Jul 20, 1998 |
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