Let’s keep building the ultimate Solar System. In Part 1 we chose our star.  In Part 2 we chose our planets. In Part 3 we chose our planets’ orbit.  In Part 4 we learned two ninja moves about orbits.  In Part 5 we put the pieces together. In this post we will take the Ultimate … More Building the ultimate Solar System part 6: a system with multiple stars

Two days ago we built a planetary system with an Earth that has five Suns in the sky.  It looks like this: Yesterday we explored the motions of the heavens on this 5-Sun Earth: how the Suns move across the sky and when night falls (not too often, it turns out). Today we are going … More Earth with five Suns in the sky: the whole truth

In yesterday’s post we built a planetary system with an Earth that has five Suns in the sky.  Here is what it looks like: Today we are going to pretend that we are inhabitants of this five-Sun Earth and look up at the sky. How do the Suns move across the sky?  And, with all … More Earth with five Suns in the sky: 8 years without night