by Andrew Fraknoi, David Morrison, Sidney C. Wolff
Publisher: Unglue.it 2016
Number of pages: 1200
Astronomy is designed to meet the scope and sequence requirements of one- or two-semester introductory astronomy courses. The book begins with relevant scientific fundamentals and progresses through an exploration of the solar system, stars, galaxies and cosmology.
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by Forest Ray Moulton - The MacMillan Company
It has been assumed that the reader has an interest in the wonderful universe which surrounds him, and that he has arrived at such a stage of intellectual development that he demands the reasons for whatever conclusions he is asked to accept.
by James N. Pierce
A book written for teachers (and parents) of students in grades K-6. The astronomy topics it covers are those most commonly found in these grade levels: Earth and Sun; night and day; seasons; phases of the Moon; eclipses; solar system; planets...
This book introduces the advanced secondary or beginning university student to the process that revealed the rich tapestry of the universe to humanity, presenting astronomy not only as a field of knowledge, but also as a human endeavor in science.
This website surveys the entire extent of the universe touching upon phenomenon from the largest to the smallest size and covering the entire cosmic interval. It presents observations as well as the theories which explains the phenomena.