Solar System Facts

What is the approximate diameter of Mercury (in km)?

• 12,756 km
• 6,787 km
• 142,800 km
• 4,878 km

What is the average distance (approximately) between Earth and the Sun (in miles)?

• 149,699,180 miles
• 93,000,000 miles
• 120,000,000 miles
• 67,034,980 miles

What is the approximate orbital velocity of Mercury (in km/sec)?

• 47.89 km/sec
• 35.03 km/sec
• 24.10 km/sec
• 29.79 km/sec

How many moons does Mars have?

• 0
• 1
• 2
• 67

What is the inclination of the axis (axis tilt) of Mars (in degrees)?

• 177.36
• 3.08
• 97.77
• 25.19

What is the size of Venus (in diameter) compared to the Earth?

• 0.38
• 11.3
• .95
• .53

How much bigger (in diameter) is Jupiter compared to the Earth?

• 11.02
• 9.44
• 4
• 3.9

How much bigger (in mass) is Jupiter compared to the Earth?

• .107
• 318
• 95
• 17.1

What is the approximate orbital period of Neptune (in Earth Years)?

• 84.01
• 29.45
• 164.8
• 11.86

What is the approximate inclination of the axis (axis tilt) of Uranus (in degrees)?

• 97.92
• 177.36
• 23.45
• 28.80