The Astronomy Center has provided educational resources to introductory astronomy educators since 2003. Over the past 20 years, the rapid pace of discovery has rendered some of our linked resources obsolete. Thus, the Astronomy Center will be decommissioned on March 1, 2022. Our highest quality resources will be retained on ComPADRE.org.

Astronomy Center.org


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Results #1-#10 of 100+
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Match Score:
100
Byline:
J. Scott
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This guide describes a novel project structure for sky observations commonly assigned in introductory level astronomy students at either the high school or undergraduate level. The…
  
Match Score:
100
Byline:
D. Stern
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This web page discusses why and how sundials tell time. It provides instructions for teachers and students on how to create a paper sundial, tells how to design sundials for…
Precession 
  
Match Score:
100
Byline:
D. Stern
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This web page 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…
  
Match Score:
100
Byline:
D. Stern
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This pair of web pages describes early calculations of the Earth-Moon distance by Greek astronomers. Using lunar and solar eclipses, the astronomers Aristarchus and Hipparchus…
  
Match Score:
100
Byline:
A. Fraknoi
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"Black Lives in Astronomy," a new 8-page resource guide includes written and video resources about and by 25 Black astronomers, as well as general materials to examine the history…
  
Match Score:
100
Byline:
D. Stern
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The round shape of the Earth may be inferred from the existence of a horizon at sea. Ancient Greeks deduced it from the shape of the Earth's shadow when the Moon is eclipsed and from…
  
Match Score:
100
Byline:
L. Strubbe and S. McKagan
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This essay provides help for instructors needing to teach their courses online. It includes both basic principles and considerations for running a remote class and a list of…
Parallax 
  
Match Score:
100
Byline:
D. Stern
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This web page outlines the math and applications of parallax. Parallax is the shift in the apparent direction to an object when it is viewed from two separated locations. It allows…
  
Match Score:
100
Byline:
D. Stern
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This web page provides information and a graphical exercise for students regarding the interaction between magnetic field lines and a plasma. The activity involves tracing a typical…
  
Match Score:
100
Byline:
D. Stern
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This is a set of six web pages describing four unconventional methods of accelerating spacecraft. These are using cannons, nuclear power, solar sails and ion rockets. Gravity-assist…
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Results #1-#10 of 100+