Cepheid variable: References & Edit History
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Added cross-references. | Jul 22, 2022 | ||
| Invalidated site: NASA - Cepheid Variables as Cosmic Yardsticks. | Mar 11, 2019 | ||
| Media added. | Nov 06, 2008 | ||
| Added new Web site: Wolfram Research - Cepheid Variable. | May 21, 2008 | ||
| Added new Web site: The Electronic Universe -. | Aug 17, 2007 | ||
| Added new Web site: Hyperphysics - Cepheid Variables. | Aug 17, 2007 | ||
| Added new Web site: NASA - Cepheid Variables as Cosmic Yardsticks. | Aug 17, 2007 | ||
| Added new Web site: Australia Telescope Outreach and Education - Cepheid Variable Stars & Distance Determination. | Aug 17, 2007 | ||
| Added new Web site: Institute of Astronomy at School of Physical Sciences of The University of Cambridge - Cepheid Variables. | Aug 17, 2007 | ||
| Article revised and updated. | Mar 09, 2007 | ||
| Article added to new online database. | Jul 20, 1998 |
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