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  • つくってあそぶ CRAFT(クラフト)
  • よんでたのしむ STORY(ストーリー)


Cardboard Planetarium

When a large package is delivered, it's a good opportunity to make a cardboard planetarium! Select a constellation sheet from four sheets, each representing the four seasons. Apply it to the cardboard, and poke holes in the top. Then draw a moon, mars, and a galaxy on the outside, and your planetarium is finished. Make the room bright and stick your head into the Entrance, and if you look up you'll see a big starry sky unfold before your eyes. Use the Kitte Otte original guidebook to find constellations like Cygnus and Libra. Once you've learned the shape of the constellations it will make looking at the stars in the night sky much more fun.

There are four types of constellation sheets, one for each season. Apply it to the cardboard, then poke holes into the round spots, and you can easily make a constellation. The sharp part of a pen or ice pick is sufficient for this task, but please have an adult do it. The trick is to make both big and small holes, this will make it more three dimensional and it will more closely resemble a constellation.

Decorating the outside of the cardboard is also one part of the fun. For instance, cutting out and pasting paper stars, or painting it the color of the night sky. And drawing pictures to match the season of your desired constellation sheet. Next are the sides. Cut out a hole that’s the size of your head in order to create the “Entrance” to the planetarium.

Once that’s finished it’s finally time for the projection. Make the room bright, and get excited to slip into the Entrance. If you look up at the sky, you’ll see big and small twinkling lights. And once your eyes adjust, you will be able to see the constellation for the season.

We recommend learning the constellations from Kitt Otte’s original constellation guidebook. Or you could play a game where you compete to find the most constellations. And isn’t it great to find a fun practical use for all those cardboard boxes you have piled up.

Download PDF!

[ 用意するもの ]

[ Prepared list ]

  • Scissors
  • Cutter knife
  • Cutting mat
  • Ice pick (ballpoint pen)

[ おすすめの紙 ]

[ Reccomend paper ]

  • Normal
>>紙の厚さについて >>about types, thickness and weight(japanese)

Put a constellation chart on the cardboard, and poke holes in the shape of a constellation with a gimlet or ice pick. And make sure to cut both large and small holes.

Make your own decoration on the sides. Whether you choose to draw directly on the cardboard, or paste paper, you will end up with a planetarium that is all your own.

Once you've cut a hole the size of your head, you're finished.

Cut the four sides of the guidebook and cut a notch in the center.

Fold it in half from the side.

Open it and turn it vertically, then fold it in half again.

Turn it vertically again and make a valley fold.

Open it and then hold the part where you made a notch and fold it so that it's standing up right.

Once you've folded so that it looks like a book with a front and back cover, the guidebook is finished.


Check the how-to video!

Download PDF!