8A05  Historical Astronomy
8A10  Solar System Mechanics
            .10 Orrery Model
            .15 Day and Night
            .25 Phases of the Moon
            .29 Moon Phases with Ping Pong Balls
            .30 Eclipse Model
            .61 Ellipse Drawer for Markerboard
            .62 Conic Sections
            .81 Gnomon
            .85 Celestial Sphere
8A20  Earth-Moon Mechanics
            .16 Earth's Shadow on Moon
            .71 Earth and Moon to Scale
8A30  Views From Earth
8A35  Views From Earth - 2
            .05 Satellite Model
8A40  Planetary Properties - 1: Globes, Hemispheres, and Maps
            .10 Earth Globe
            .11 Lunar Globe
            .15 Chalk Globe
8A50  Planetary Properties - 2: The Planets
8A60  Planetary Properties - 3: Planetoids, Minor Objects
8A70  Planetary Properties - 4: Planetary Characteristics
8A80  Planetary Properties - 5: Comets And The Search For Life

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