* Astronomy

SegaToys HomeStar, from Japan, is a small home projector that turns your rooms ceiling into a planetarium.
Using interchangeable plates, it can display to 10,000 stars (northern or southern hemisphere) and constellations.
A built-in motor simulates the earth's rotation.
An interesting feature is that it can generate random meteors.
The device has a sleep timer.

“It is the planetarium for worldwide first optical type home. It is possible to exceed several thousand numbers of stars that to project approximately ten thousand thing stars it can see generally with naked eye of the human”

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