Astronomy Fundamentals
-
A2-13: ELLIPSE DRAWING BOARD
-
E2-02: MEASUREMENT OF RADIUS OF EARTH
-
E2-21: PHASES OF THE MOON
-
E2-22 UMBRA AND PENUMBRA
-
E2-23: UMBRA AND PENUMBRA - EXTENDED SOURCE
-
E2-24: UMBRA AND PENUMBRA - COLOR FILTERS
-
E2-31: SOLAR SYSTEM MODEL
-
E2-33: RETROGRADE MOTION
-
E2-34: BASIC ORRERY (PLANETARIUM)
-
E2-41: TRANSPARENT CELESTIAL GLOBE
-
E2-43: ROTATING STAR FIELD
-
E2-47: TWINKLING STAR
-
E2-48: NON-TWINKLING PLANET