precession of the equinoxes: References & Edit History
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Invalidated site: The University of British Columbia - Mathematics Department - Precession of the Equinoxes. | Mar 29, 2023 | ||
| Article revised and updated. | Mar 24, 2022 | ||
| Add new Web site: The University of British Columbia - Mathematics Department - Precession of the Equinoxes. | Jun 05, 2017 | ||
| Value of obliquity of ecliptic modified from "23.5 degrees" to "23.44 degrees." | Nov 11, 2010 | ||
| Changed precession period from 26,000 to 25,772 years, closest approach of Polaris to celestial pole from 2017 to about 2100, and rate of equinox drift from 50.4 to 50.3 arcseconds. | Aug 23, 2010 | ||
| Added new Web site: Office of Naval Research - Observing the Sky: Precession of the Equinoxes. | May 19, 2008 | ||
| Article added to new online database. | Jul 20, 1998 |
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