Astronomy Flashcards

1
Q

What is a satelite and the different types?

A
  • Satelite: anything that orbits a planet
  • Can be natural (moon) or artificial (man-made satelite)
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2
Q

What path do the planets in our solar system orbit the sun?

A
  • Planets follow an elliptical orbit (not a perfect circle)
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3
Q

Asteroids vs comets

A
  • Asteroids: made of rock and metal. Orbit in the asteroid belt (between Mars and Jupiter)
  • Comets: made of ice and dust. Have a much more elliptical orbit and stay on the outskirts of the solar system
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4
Q

What is a galaxy?

A
  • A collection of billions of stars, most of which have their own solar systems
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5
Q

What is the universe?

A
  • A collection of trillions of different galaxies
  • Mostly empty space
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