5 Written questions
5 Matching questions
- Apparent Magnitude
- Globular Clusters:
- Stellar Evolution
- a What we see in the sky. Star Charts and planispheres use different size "dots" to represent.
- b Gravitationally-bound grouping of very old stars. <10,000 to one million stars> Old, many, many, stars, organized.
- c A star's life path as shown on a Hertzsprung-Russell Diagram.
- d Cool stars which are a little smaller and dimmer than the supergiants.
- e Spectral type B (pale blue) Temperature range: 10,000 - 30,000 K
5 Multiple choice questions
- Spectral type O (white). Temperature range >30,000 K.
- Consist of two major groups: Open and Globular
- 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.
- Spectral type M (red) Temperature range <3,500 K.
- 1/2 the star's shift back and forth, in degrees.
5 True/False questions
Optical Double → Stars 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.
Spectral type G → Pale Yellow - Temperature range: 6,000-7,500
Closest Star → The distance light travels in one year = approximately 10 trillion kilometers.
Parsec → Spectral type F (pale yellow) Temperature range: 6,000-7,500 K.
Cataclysmic Variables → One 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.