Building the ultimate Solar System part 5: putting the pieces together

We are building the ultimate Solar System.    In Part 1 we chose the right star.  In Part 2 we chose the right planets. In Part 3 we chose the right orbits for the planets.  In Part 4 we learned two ninja moves about how more than one planet/moon can share the same orbit. Today’s … More Building the ultimate Solar System part 5: putting the pieces together

Building the ultimate Solar System part 2: choosing the right planets

We are building the ultimate Solar System.    In Part 1 we chose the right star. Today’s job: choosing the right planets to put in our ultimate Solar System.  Let’s stick to two defining characteristics: a planet’s size (or mass) and its composition. We want Goldilocks-ish planets.  They shouldn’t be too small, too big, too … More Building the ultimate Solar System part 2: choosing the right planets