Astronomy 2

Which one is the biggest moon of Jupiter?

• Io

• Europa

• Ganymede

• Callisto

Which object was investigated by the Cassini research mission?

• A comet

• Jupiter

• Saturn

• Pluto

The International Space Station circles the Earth approximately every ...

• 60 minutes

• 90 minutes

• 2 hours

• 5 hours

What is the diameter of the Sun approximately?

• 0.6 million km

• 0.9 million km

• 1.4 million km

• 1.9 million km

The planet Jupiter orbits the Sun in ...

• 12 years

• 15 years

• 18 years

• 23 years

How high above the Earth’s equator is the geostationary orbit located?

• 26000 km

• 36000 km

• 46000 km

• 56000 km

Voyager 1 is the most distant man-made object. How fast is Voyager 1 moving away from the Sun at the moment?

• 17 km/s

• 19 km/s

• 23 km/s

• 28 km/s

When was the dwarf planet Pluto discovered?

• 1630

• 1730

• 1830

• 1930

How many times more mass has the Earth compared to the Moon?

• 15 times

• 30 times

• 50 times

• 80 times

The farthest point of a planet to the Sun is called ...

• Aphelion

• Perihelion

• Apogee

• Perigee