The Hidden Lives of Galaxies - Classifying Galaxies
Activity #3 Classifying Galaxies Using Hubbles Fork Diagram
Objectives:
- Student will gain knowledge of Hubbles Fork Diagram of Galaxy Classification.
- Student will be able to use his/her knowledge of the Hubble Fork Diagram to explain how the five galaxies in the "Types of Galaxies" section were classified.
- Student will be able to create a chart that displays the basic scheme and classification of galaxies using the Hubble Fork Diagram.
Directions:
- Review Hubbles Fork Diagram of Galaxy Classification (see Transparency #3 Hubble Fork Diagram).
- Using the Galaxy Classification Chart, observe the images of each of the galaxies. Determine the scheme and classification of each galaxy. (see Transparency #4 Galaxy Classification Images).
Transparencies available at http://imagine.gsfc.nasa.gov/educators/galaxies/transparencies/.
Galaxy Classification Chart
Galaxy | Image | Scheme | Classification |
Andromeda |
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Spiral |
Sb |
M84, NGC4374 |
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NGC 2997 |
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NGC5383 |
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Large Magellanic |
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NGC4622 |
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M83 |
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Centaurus A |
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M59, NGC4621 |
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NGC1365 |
Assessment:
- With a partner, brainstorm ideas of how you classify objects in your everyday life (Pair/Share).
- How does classifying help organize your life? List five examples.
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