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Classification of Galaxies<br />Chapter 16.1b<br />
ACHIEVE<br />Activity – Direct Instruction<br />Conversation – Voice Level 2.  Limit to topic.<br />Help – Raise hand unti...
Expectation<br />Write down things on your notebook starting from the next available space.<br />Poster will be turned in ...
Classification of Galaxies<br />Irregular Galaxies<br />Elliptical Galaxies<br />Spiral Galaxies<br />
Irregular Galaxies<br />Irregular galaxies have no regular or symmetrical structure. <br />They have regions of elemental ...
Irregular Galaxies<br />
Irregular Galaxies<br />
Irregular Galaxies<br />
Irregular Galaxies<br />
Spiral Galaxies<br />Spiral galaxies have three main components: <br />a central bulge, <br />disk, and <br />halo<br />
Spiral Galaxies<br />The bulge is a spherical structure found in the center of the galaxy. <br />This feature mostly conta...
Spiral Galaxies<br />The disk is made up of dust, gas, and younger stars. <br />The disk forms arm structures. <br />Our S...
Spiral Galaxies<br />The halo of a galaxy is a loose, spherical structure located around the bulge and some of the disk. <...
Spiral Galaxies<br />Globular clusters are spherical concentrations of stars <br />typically 100 light years across and co...
Spiral Galaxies<br />
Spiral Galaxies<br />
Spiral Galaxies<br />
Spiral Galaxies<br />
Elliptical Galaxies<br />Elliptical galaxies are shaped like an elongated sphere.<br />The light is smooth<br />The surfac...
Elliptical Galaxies<br />
Elliptical Galaxies<br />
Elliptical Galaxies<br />
Elliptical Galaxies<br />
Elliptical Galaxies<br />
Hubble’s Classification Scheme<br />
Hubble’s Classification SchemePoster<br />
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1.1b classification of galaxies

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Transcript of "1.1b classification of galaxies"

  1. 1. Classification of Galaxies<br />Chapter 16.1b<br />
  2. 2. ACHIEVE<br />Activity – Direct Instruction<br />Conversation – Voice Level 2. Limit to topic.<br />Help – Raise hand until recognized. <br />Integrity – If you go behind in note taking, raise your hand and ask for a “repeat or slow down.”<br />Effort – Sit up eyes on screen, handout, or your notes. Write notes about material presented.<br />Value – Presentation will help you more fully understand Galaxy Classificaton.<br />Efficiency – Glue handouts and notes in notebook for easy access.<br />
  3. 3. Expectation<br />Write down things on your notebook starting from the next available space.<br />Poster will be turned in today.<br />
  4. 4. Classification of Galaxies<br />Irregular Galaxies<br />Elliptical Galaxies<br />Spiral Galaxies<br />
  5. 5. Irregular Galaxies<br />Irregular galaxies have no regular or symmetrical structure. <br />They have regions of elemental hydrogen gas, and many young stars. <br />They have large amounts of dusts from which stars are born.<br />
  6. 6. Irregular Galaxies<br />
  7. 7. Irregular Galaxies<br />
  8. 8. Irregular Galaxies<br />
  9. 9. Irregular Galaxies<br />
  10. 10. Spiral Galaxies<br />Spiral galaxies have three main components: <br />a central bulge, <br />disk, and <br />halo<br />
  11. 11. Spiral Galaxies<br />The bulge is a spherical structure found in the center of the galaxy. <br />This feature mostly contains older stars. <br />
  12. 12. Spiral Galaxies<br />The disk is made up of dust, gas, and younger stars. <br />The disk forms arm structures. <br />Our Sun is located in an arm of our galaxy, the Milky Way. <br />
  13. 13. Spiral Galaxies<br />The halo of a galaxy is a loose, spherical structure located around the bulge and some of the disk. <br />The halo contains old clusters of stars, known as globular clusters.<br />
  14. 14. Spiral Galaxies<br />Globular clusters are spherical concentrations of stars <br />typically 100 light years across and containing thousands of stars. <br />Globular clusters 10 billion years old<br />formed when the galaxy was still forming. <br />
  15. 15. Spiral Galaxies<br />
  16. 16. Spiral Galaxies<br />
  17. 17. Spiral Galaxies<br />
  18. 18. Spiral Galaxies<br />
  19. 19. Elliptical Galaxies<br />Elliptical galaxies are shaped like an elongated sphere.<br />The light is smooth<br />The surface brightness decreases as you go farther out from the center.<br />Elliptical galaxies have no particular axis of rotation.<br />
  20. 20. Elliptical Galaxies<br />
  21. 21. Elliptical Galaxies<br />
  22. 22. Elliptical Galaxies<br />
  23. 23. Elliptical Galaxies<br />
  24. 24. Elliptical Galaxies<br />
  25. 25. Hubble’s Classification Scheme<br />
  26. 26. Hubble’s Classification SchemePoster<br />
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