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How to Use a Japanese Planetarium Projector at Home

A planetarium projector casts images that mimic different sections of the night sky onto a ceiling. To use the Japanese-made Sega Toy-brand portable planetarium projector at home, you should follow the accompanying instructions to set it up. If you don't read Japanese, you'll be able to use the diagrams shown on the instructions for the setup.

Things You'll Need

Bath towel
Extension cord
Instruction manual
Assistant (optional)
Remote

Instructions

- 1
  Place the Sega Toy-brand planetarium projector on the floor in the center of a room that either has no windows or has shades or blinds. Close the shades or blinds on the windows. Place a bath towel on the floor against the bottom of the door to block any light.
- 2
  Plug an extension cord into the projector's power cord. Plug the extension cord into an outlet. Let the sun set before continuing so that the room is as dark as possible.
- 3
  Loosen the locking knob on the side of the projector. Rotate the projector so that the lens is facing up. Tighten the locking knob.
- 4
  Pull out, using your fingers, the side-mounted tray. Place one of the "Star Field" discs that comes with the projector in the tray, label-side up. Close the tray.
- 5
  Turn the projector on using its "Power" button. Turn off, or have an assistant turn off, the light in the room. Rotate the knob at the front of the lens to manually focus the image being projected on the ceiling.
- 6
  Press one of the "Rotation" buttons on the remote to start the movement of the stars on the ceiling.

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