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(Article continued from previous post)
![Using the tin can pinhole planetarium](http://nightskyonline.info/wp-content/uploads/2014/04/12_Southern_Cross_stars_looking_into_tin_can_planetarium-300x225.jpg)
You can use the pinhole planetarium by looking through it (see above image showing what I saw) or by shining a torch through it so that you get star images projected onto a wall (see below image). Note that the square stars in the below image is due to the pinholes acting like a pinhole camera and projecting an image of the LED of the torch I used.
![Using the tin can pinhole planetarium](http://nightskyonline.info/wp-content/uploads/2014/04/13_shining_torch_into_tin_can_planetarium_stars_shining_onto_wall-300x225.jpg)