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Title: Precession
Url: http://www.phy6.org/stargaze/Sprecess.htm
Creator: Stern, David P. (David Peter), 1931-
Publisher: David P. Stern
Description: This web page, authored and curated by David P. Stern, describes the precession of the Earth's axis of rotation relative to the stars. It describes the discovery by the Greek astronomer Hipparchus that the position of the Sun at any season, measured against the background stars, migrates in a slow cycle of about 26000 years. This "precession of the equinoxes" is caused by the rotation axis of the Earth slowly moving around a cone. Precession may be one of several astronomical processes contributing to the ice ages, as proposed by the Serbian astronomer Milutin Milankovich. This page is part of a large web site, "From Stargazers to Starships" that presents physics concepts through applications to space science and an historical perspective. A related lesson plan and other resources are linked to this page.
LC Classification: Science -- Astronomy -- Descriptive astronomy -- Solar system -- Planets. Planetology -- Earth as a planet. Astronomical geography -- Rotation
Science -- Astronomy -- History -- Ancient -- Greek
Science -- Astronomy -- Practical and spherical astronomy -- Correction and reduction of observations -- Correction for movement of earth and equinoxes
Science -- Astronomy -- Practical and spherical astronomy -- Correction and reduction of observations -- Correction for movement of earth and equinoxes -- Precession and nutation
Science -- Astronomy -- Theoretical astronomy and celestial mechanics
GEM Subject: Science -- Physics
Science -- Astronomy
Science -- Space sciences
Key Concept: Astronomy -- Earth
Astronomy -- Stars
Physics -- Rotation
Key Concepts Complete: Yes
Date Issued: 2004-09-17
Resource Type: Instructional Materials
Reference
Science Materials
Teaching Guides
Format: html
Audience: College/University Instructors
Higher Education
Secondary Education
Students
Teachers
Technical School First Cycle
Technical School Second Cycle
University First Cycle
University Second Cycle
Vocational Training
Language: English
Rights: Dr. David P. Stern
Access Rights: Free access
Date Of Record Release: 2009-04-14 03:00:01 (W3C-DTF)
Date Last Modified: 2009-04-13 16:41:55 (W3C-DTF)
Source: comPADRE  comPADRE
Full Record Views: 82
Resource URL Clicks: 5
Cumulative Rating: NOT YET RATED
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