The Night Sky is a rotating star finder (planisphere) that allows the user to recognize the constellations for any time of night, any day of the year.
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The sky appears to rotate (due to the rotation and orbital motion of the earth), so to be successful recognizing the constellations a beginner needs to know which stars are above the horizon at any time.
This is the full-sized version of The Night Sky suitable for the 40°-50° latitude zone (northern United States and parts of Europe).
We have versions for the following latitude zones: 50°-60°, 40°-50°, 30°-40°, 20°-30°, and the Southern Hemisphere.
We also have pocket-sized versions available for the same latitude zones..
For more information about the title The Night Sky 40°-50° (Large), read the full description at Amazon.com, or see the following related books:
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