Harvard University
Harvard Smithsonian Center for Astrophysics: The Constellations
Based on images from the Chandra X-Ray Observatory, this is an excellent glossary of all the constellations, including the ones that make up the Zodiac. Find images, photographs, and an excellent background narratives concerning each...
Other
Constellations Web Page: The Constellations
Information about 88 constellations, including the myths associated with them and details of the major astronomical objects that are part of them.
Mocomi & Anibrain Digital Technologies
Mocomi: What Is a Constellation?
Constellations are patterns formed by groups of stars. Take a look at some of the familiar constellations.
American Museum of Natural History
American Museum of Natural History: O Logy: Stuff to Do: Stargazing
Get started on the road to becoming an expert stargazer by following these recommendations for identifying stars, planets, and constellations. Includes an example of a journal that can be used as a record of your investigations.