Equinox is a powerful planetarium program that has many features for both the beginner and advanced astronomer. It has filters for organizing deep sky objects with many controls to adjust the sky display, colors and fonts. Equinox can control most telescopes and there is a window that simulates a telescope’s view. You can build tours and photo horizons and modify the database. You can even slew your telescope with voice commands. Only available from the Mac App StoreSM.