1. Classification of Galaxies Chapter 16.1b No Excuses, Just Results! Show-up, Engage & Produce

2. ACHIEVE Activity – Direct Instruction Conversation – Voice Level 2. Limit to topic. Help – Raise hand until recognized. Integrity – If you go behind in note taking, raise your hand and ask for a “repeat or slow down.” Effort – Sit up eyes on screen, handout, or your notes. Write notes about material presented. Value – Presentation will help you more fully understand Galaxy Classificaton. Efficiency – Glue handouts and notes in notebook for easy access. No Excuses, Just Results! Show-up, Engage & Produce

3. Expectation Write down things on your notebook starting from the next available space. Poster is due today. If you need to review, visit my fusion page. Homework for today is in fusion page. Additional Resources are found in my fusion page. No Excuses, Just Results! Show-up, Engage & Produce

4. Irregular Galaxies Irregular galaxies have no regular or symmetrical structure. They have regions of elemental hydrogen gas, and many young stars. They have large amounts of dusts from which stars are born. No Excuses, Just Results! Show-up, Engage & Produce

5. Irregular Galaxies No Excuses, Just Results! Show-up, Engage & Produce

6. Irregular Galaxies No Excuses, Just Results! Show-up, Engage & Produce

7. Irregular Galaxies No Excuses, Just Results! Show-up, Engage & Produce

8. Irregular Galaxies No Excuses, Just Results! Show-up, Engage & Produce

9. Spiral Galaxies Spiral galaxies have three main components: a central bulge, disk, and halo No Excuses, Just Results! Show-up, Engage & Produce

10. Spiral Galaxies The bulge is a spherical structure found in the center of the galaxy. This feature mostly contains older stars. No Excuses, Just Results! Show-up, Engage & Produce

11. Spiral Galaxies The disk is made up of dust, gas, and younger stars. The disk forms arm structures. Our Sun is located in an arm of our galaxy, the Milky Way. No Excuses, Just Results! Show-up, Engage & Produce

12. Spiral Galaxies The halo of a galaxy is a loose, spherical structure located around the bulge and some of the disk. The halo contains old clusters of stars, known as globular clusters. No Excuses, Just Results! Show-up, Engage & Produce

13. Spiral Galaxies Globular clusters are spherical concentrations of stars typically 100 light years across and containing thousands of stars. Globular clusters 10 billion years old formed when the galaxy was still forming. No Excuses, Just Results! Show-up, Engage & Produce

14. Spiral Galaxies No Excuses, Just Results! Show-up, Engage & Produce

15. Spiral Galaxies No Excuses, Just Results! Show-up, Engage & Produce

16. Spiral Galaxies No Excuses, Just Results! Show-up, Engage & Produce

17. Spiral Galaxies No Excuses, Just Results! Show-up, Engage & Produce

18. Elliptical Galaxies Elliptical galaxies are shaped like an elongated sphere. The light is smooth The surface brightness decreases as you go farther out from the center. Elliptical galaxies have no particular axis of rotation. No Excuses, Just Results! Show-up, Engage & Produce

19. Elliptical Galaxies No Excuses, Just Results! Show-up, Engage & Produce

20. Elliptical Galaxies No Excuses, Just Results! Show-up, Engage & Produce

21. Elliptical Galaxies No Excuses, Just Results! Show-up, Engage & Produce

22. Elliptical Galaxies No Excuses, Just Results! Show-up, Engage & Produce

23. Elliptical Galaxies No Excuses, Just Results! Show-up, Engage & Produce

24. Hubble’s Classification Scheme No Excuses, Just Results! Show-up, Engage & Produce

25. Hubble’s Classification SchemePoster No Excuses, Just Results! Show-up, Engage & Produce