Build Uncle Al's Star Finder!


cut out the star wheels


Build "Uncle Al's Star Wheel" from the Lawrence Hall of Science. Cut out each of the two wheels and the star wheel holder. In the holder, cut out the center oval and fold up and tape together the bottom fourth of the page to make a 'slot' that will hold the star wheel behind the oval opening and show you the stars for the night you dial on the star wheel. Here is a link to download the star wheel patterns.


StarWheel Picture

To Use the Sky Wheels


Slip the star wheel inside the holder.

Turn the star wheel so that the month and date along the edge matches the time of day on the star wheel holder.


The oval opening of the star wheel holder is meant to represent the horizon (where the sky seems to meet the land). The horizon is labeled with directions, such as northern, western, southern, eastern.


Hold the star finder with your thumb on the direction you are facing. The constellations above the horizon line are the ones you will see in the sky when you face that direction.


If you look straight up you will see the constellations in the center of the chart.


Uncle Al's Sky Wheels were created by the LHS Hands-On Universe project.


Ideas for learning the sky:



Yerkes Astrophysics Academy for Young Scientists (YAAYS) National Science Foundation Award #0639690 is an out of school time program for 3rd through 8th grade students from registered schools.