For the experienced amateur astronomer who is wondering if there is something useful, valuable, and permanent that can be done with his or her observational ski
You too can follow in the steps of the great astronomers such as Hipparchus, Galileo, Kepler and Hubble, who all contributed so much to our modern understanding
Hirshfeld's Astronomy Activity and Laboratory Manual is a collection of twenty classroom-based exercises that provide an active-learning approach to mastering a
A unique collection of thirty experiments ranging from ancient astronomy to cosmology, each containing one or more challenges for the reader. The progression he