Ready References
A Guide to Backyard Astronomy
Using a Naked-Eye Starmap
Star-Finding With a Planisphere
AAVSO Publications and Periodicals
Signal Conditioning and Data Acquisition Overview
Easy Prototyping
Rocks and Layers
Ready References A Guide to Backyard Astronomy 
Using a Naked-Eye Starmap Star-Finding With a Planisphere AAVSO Publications and Periodicals Signal Conditioning and Data Acquisition Overview 
Easy Prototyping Rocks and Layers