A Visual Astronomer's Photographic Guide to the Deep Sky : A Pocket Field Guide
Stefan Rumistrzewicz
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Format: eBook (PDF)
A Spectroscopic Atlas of Bright Stars : A Pocket Field Guide
Jack Martin
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Format: eBook (PDF)
The Casual Sky Observer's Guide : Stargazing with Binoculars and Small Telescopes
Rony De Laet
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Format: eBook (PDF)
A Stargazing Program for Beginners : A Pocket Field Guide
Jamie Carter
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Format: eBook (PDF)