Here's how to calculate the scale diameter of Jupiter when the Sun is 3000 mm:

1. Understand the Ratios

* Sun's Diameter: 1,392,000 km

* Jupiter's Diameter: 142,984 km

2. Calculate the Scale Factor

* Divide the Sun's model diameter by the Sun's actual diameter: 3000 mm / 1,392,000 km = 0.00215 mm/km

* This means every kilometer in the real solar system is represented by 0.00215 mm in our model.

3. Apply the Scale Factor to Jupiter

* Multiply Jupiter's actual diameter by the scale factor: 142,984 km * 0.00215 mm/km = 307.6 mm

Therefore, the scale diameter of Jupiter would be approximately 307.6 mm when the Sun is 3000 mm in diameter.