Ready References
A Guide to Backyard Astronomy
Beating the Seeing
Keeping Warm at the Telescope
Setting Up and Observing Program
Stepper Servo Motors
Coating of Surfaces: Evaporation and Sputtering
Relative Time Scale
Ready References A Guide to Backyard Astronomy 
Beating the Seeing Keeping Warm at the Telescope 
Setting Up and Observing Program Stepper Servo Motors 
Coating of Surfaces: Evaporation and Sputtering Relative Time Scale