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Astronomy: part 2
Question | Answer |
---|---|
What is the less massive stars order? | 1. Nebula, 2. protostar, 3. main sequence star, 4. white dwarf, 5. black dwarf (death) |
What is the more massive stars order? | 1. Nebula, 2. protostar, 3. main sequence star, 4. supernova, 5. neutron star (death |
What is the most widely accepted theory for how the universe is formed? | The Big Bang Theory |
What do all stars start off as? | Solar nebula |
What is a solar nebula? | Huge, vast clouds of ice, gas and dust |
This shows the relationship between absolute magnitude in relation to their surface temperatures. | The Hertzsprung - Russell (H-R) |
How many times more do blue giant stars put out energy than the Sun? | 10,000 |
What are galaxies? | Collections of billions of stars |
What galaxy is our solar system located in? | Milky Way |
What are black holes? | The end of the life cycle of some supergiant stars |
What are distances in our universe measured in? | Light years |
What are light years? | The distance light travels in one year |