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Creado por Kristen_May
hace casi 10 años
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Pregunta | Respuesta |
Is stuff in space evenly spaced out? | No |
What do you use to find distance/locations? | Triangle math and Geometry |
Parallax | How much things appear to move from two viewpoints compared to a refernce point |
Triangulation | 1.Use scale diagrams of traiangles 2. Often base line is 2 AU's |
Distances 1. Small 2. Medium 3. Large | 1. Km- Planets, stars 2. A.U's- Solar system 3. Light years- Outerspace |
What did they often use as reference points? | Cepheids, pulsars (Change brightness) |
What is it called when stars group together? | Cluster |
What is a smaller cluster called? | Open cluster |
What is a larger cluster called? | Globular cluster |
What are Galaxies made of? | Star clusters, planets, nebulas...ect... |
What are the 3 types of Galaxies? | 1. Elliptical 2. Spiral 3. Irregular |
What is the Doppler shift? | 1. It shows direction and speed of moving object 2. Changes length of voques-Chnage colour 3. If the waves move towards you they are a Blue shift, away and they are a Red shift |
Who found out that the universe was expanding? | Hubble |
Quasars | 1. Huge, high energy, galaxy centers 2. Nothing in the universe makes more energy 3. Possibly made from Glaxies colliding 4. On the edge of the universe |
Gamma Ray Burst | 1. Releases more energy in a second than the sun will in it's entire life 2. Possibly parts of a forming black hole 3. From supernovas or when stars collide |
Missing Mass | 1. The universe does not have enough mass to work the way it does 2. A particle called the neutrino was found to fill the universe, Comes from the big bang 3. There is also dark matter but we don't know how do detect it yet |
What are the top 4 things that affect the earth? | 1. Space debris 2. Stars 3. Moon 4. Sun, light, and heat |
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