Description
The Celestial Globe is a demonstration device that shows the apparant positions
of the stars visible from Earth. The three dimensional representation allows
the relative angular positions of the constellations to be visualized and permits
students to estimate which stars will be visible from different places on Earth for
any rotational position of the planet.
The globe consists of two concentric spheres mounted on a common axle and
supported on a frame with a base.
The inner sphere (1 in the above illustration) is 4” in diameter and represents the
Earth. The continents are marked on it in their correct relative positions. The
outer sphere (2) is transparent. It is 12.5” in diameter and has the constellations
and their stars marked on it. Yellow shading indicates the Milky Way, the plane
of our galaxy. The axle (3) that carries both spheres allows them to be rotated
independently.
An angle scale is marked on the frame (4) that supports the axle. The angles
are marked every degree and extend from zero at the equator to 87° in both
directions. The frame is fixed to a round base (5) so that the axle is held at an
angle of 23.5° to the vertical, representing the inclination of the Earth’s spin axis
to the axis of its orbit around the sun. Includes activity guide.
Additional Info: Celestial star globe
Package Size(L x W x H): 14 X 14 X 15 (IN)
Categories: Earth Science, Globes
HTS Code: 9023.00.0000
Country Of Origin: CHINA
