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5 Written questions

5 Matching questions

  1. Rigel
  2. Giants
  3. Apparent Magnitude
  4. Globular Clusters:
  5. Stellar Evolution
  1. a What we see in the sky. Star Charts and planispheres use different size "dots" to represent.
  2. b Gravitationally-bound grouping of very old stars. <10,000 to one million stars> Old, many, many, stars, organized.
  3. c A star's life path as shown on a Hertzsprung-Russell Diagram.
  4. d Cool stars which are a little smaller and dimmer than the supergiants.
  5. e Spectral type B (pale blue) Temperature range: 10,000 - 30,000 K

5 Multiple choice questions

  1. Spectral type O (white). Temperature range >30,000 K.
  2. Consist of two major groups: Open and Globular
  3. Referred to as the H-R Diagram. Plots two stellar properties. The star's temperature (spectral class) and the star's Luminosity - measured either by solar units (against our Sun) or Absolute Magnitude.
  4. Spectral type M (red) Temperature range <3,500 K.
  5. 1/2 the star's shift back and forth, in degrees.

5 True/False questions

  1. Optical DoubleStars not physically related to each other but happen to line up so that we see what appears to be a double star system. More rare than one would think.


  2. Spectral type GPale Yellow - Temperature range: 6,000-7,500


  3. Closest StarThe distance light travels in one year = approximately 10 trillion kilometers.


  4. ParsecSpectral type F (pale yellow) Temperature range: 6,000-7,500 K.


  5. Cataclysmic VariablesOne example of a pulsating variable. Massive, high luminosity stars with short periods of one to 70 days and light variations of 0.1 to 2 magnitudes. Astronomers use these as a "standard" for distances.


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