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The second edition contains new chapters about the Jewish and Moslem Calendars
Author: Jeff Kanipe
And you’ll get advice from other aurora hunters who share personal stories about what they’ve learned chasing the elusive lights
These tests also replace the subjective estimate of Foucault shadow depths with true measurements based on the modern silicon detector array such as the CCD
Planisphere, 30 Degrees South New Releases The second edition contains newFormat: Chart The "down under" version of Sky & Telescopes planisphere is plotted for skygazers near latitude 30 degrees South, perfect for folks living in Australia or South America. This is the only planisphere we carry that shows the Southern Hemisphere's sky. ISBN 13: 9781931559133
