• Prototype a sundial or tool to observe a star, planet, or satellite. Bring physical examples to class. Post brief documentation to your blog. See these notes on sundials.
My idea of observing the planets is making a globe for the stars, or a celestial globe. I remember when I was a kid, I used to use the star charts to observe the sky when visiting the observatory. That was my first impression of the space and the shiny stars. Later on, when I was in the navy for the military service, one of the strongest impression is the night sky when we were sailing in the nights. I am so fascinated by the night sky and stars that I want to make my self a celestial globe that I can see the stars and know more about them.
I took some reference of the celestial globe and celestial sphere. The celestial sphere is an imaginary sphere with the earth at its center. The sky overhead is the half of the sphere we see from earth, appearing as a dome (even though the sky extends infinitely into space). The other half of the sphere is below the circle of the horizon.
https://replogleglobes.com/blog/the-astronomical-cartography-star-charts-and-celestial-globes/
I modeled the mold for concrete casting and injected the concrete inside the mode. One benefit of using 3D printing filament is that we can use heat gun to soften the mold and take out the piece easily.
After getting the sphere, I used the celestial stars map to locate the position of the stars and drill them with different diameter’s drill bits. Finally, I put the light inside and it can display the night sky!