American Educational Transparent Celestial Globe, 12" Diameter (300) whose rotor pitch does not

whose rotor pitch does not vary as the blades rotate

It's printed legend indicates columns and rows with numbers and letters

variable and infinite

40 watt station

American Educational Transparent Celestial Globe, 12" Diameter (300) whose rotor pitch does notTransparent 12" celestial globe maps constellations for students studying astronomy in grades 5 12 Printed 3. 3" earth globe and 3 4" yellow sun mounted inside the star globe rotate independently and demonstrate the earth's apparent relationship to the stars, planets, and galaxies Poles adjust for the month and day to show the positions of the stars relative to the calendar Mounted in full horizon and meridian base for stability Teacher's guide