What you'll need:
- A planisphere (or any small hand held bright star sky map) an example here
- Transparent graph paper (or a pencil and ruler to draw a grid)
- String
- Masking tape
- Bag of self adhesive glow in the dark stars of different size (depends on detail and accuracy required).
- Ladder
- Permission from Mom & Dad (This is usually easier to ask after creating the star map...)
- Note: I would suggest not to use stickers of planets if you want an authentic position in the sky.
- Create a grid over the star map you want to copy
- Overlay it with transparent graph paper
- or draw a grid in pencil over the star map
- or add them into the image before printing, using a graphic editor
- Create a grid on the ceiling
- Be prepared - cut small pieces of masking tape and place them on the ladder, and lengths of string the length/width of the floor before you start
- Mark points around the edge of the ceiling 10 cm apart with a pencil or small pieces of masking tape
- Using masking tape, paste the strings across the ceiling, creating a grid #
- Looking at the grid in the map in your hand, find a comfortable translation to the size of the grid on your ceiling - let's say 20:1 - but count the squares on the ceiling before you start and make sure it fits in!
- Take the bottom left corner of the map - looking at the first 4 squares - copy the stars to the first 4 squares on your ceiling, using larger glow-in-the-dark stars for brighter stars.(you can cut the stars to get finer differences in sizes if you like)
- Work on small parts of ceiling at a time so you don't get mixed up
- Once finished, remove the tape and strings from the ceiling carefully so as not to damage the paint.
- Leave the light on for a few minutes with your eyes closed.
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