"Can I See It? Modern tools for observation planning" by RAC member Phyllis Lang. Phyllis is a long-time visual observer and the author of Deep-Sky Planner software.
Go beyond charts and magazines to plan your observing sessions. Determine the best observing order for a list, plan observing around obstructions at your local observing site, and predict whether you can see a celestial object with your telescope under the prevailing sky conditions. This prediction is based on a technique I call visibility modeling.