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.

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Results #1-#4 of 4
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The Moon's Distance--1 
  
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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…
http://www.phy6.org/stargaze/Shipprc2.htm
Stellar Properties 
  
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100
Byline:
N. Strobel
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Astronomy notes is an educational resource for introductory astronomy classes for undergraduates. This section discusses the properties of stars, such as apparent magnitude, absolute…
http://www.astronomynotes.com/starprop/s1.htm
Sloan Digital Sky Survey: Color - Basic 
  
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100
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Publisher: Sloan Digital Sky Survey
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The purpose of this SDSS project is to introduce students to the color classification system and its importance to astronomy. A complete review is done on the magnitude scale and how…
http://cas.sdss.org/dr5/en/proj/basic/color/
Winter Variable Star Observing Activity in the Constellation Gemini 
  
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100
Byline:
Hands-On Astrophysic
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This activity's objective is for students to estimate the magnitude of Zeta Gem, a cepheid variable in the constellation Gemini, over a thirty day period in order to construct a…
http://web.archive.org/web/20080705023515/http://hoa.aavso.org/zetagem.p...

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