Space Flashcards
What’s a constellation
Constellation is a group of stars that form a pattern in the sky.
State the planets in order.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
What are the terrestrial planets?
Mercury, Venus, Earth Mars.
What are the gas giants?
Jupiter, Saturn, Uranus, Neptune.
State the characteristics of Mercury.
- 0.39 AU from the Sun
- A rocky ball covered in crates, a little larger than Earth’s moon
- No atmosphere
State the characteristics of Venus.
- 0.72 AU from the Sun
- Slightly smaller than the Earth with volcanoes and lava flows.
- Thick acidic atmosphere with greenhouse gas effect.
State the characteristics of Earth.
- 1 AU from the Sun
- Rocky world, capable of living in
- Atmosphere made of N2, O2, and H2O.
State the characteristics of Mars.
- 1.52 AU from the Sun
- Rocky with extinct volcanoes
- 2 Polar Ice Caps
- Carbon dioxide atmosphere
What are the characteristics of Jupiter.
- 5.2 AU from the sun
- 2.5x more bigger than all the other planets combines
- Thin rings and 95 moons
What are the characteristics of Saturn.
- 9.54 AU from the Sun
- Rings are made of ice particles, and are 250 k wide
- Atmosphere is made of H2 and He
- 146 moons.
What are the characteristics of Uranus.
- 19.18 AU from the Sun
- Atmosphere is made of H2 and He.
- Colour is from Methane
- Flipped on its side
- 28 moons
Define the Trans Neptunian Objects and Kuiper Belt.
- Objects that orbit the sun beyond the orbit of Neptune
- Kuiper belt is disc shaped group of millions of small objects orbiting the sun.
- Composed of fragments from other formations.
What is an Oort Cloud?
A spherical cloud made of small fragments of ice debris.
What is a comet?
An object made from rock, ice, or gases from the Kuiper Belt, or Oort Cloud.
