Chapter 13. Types of Galaxies

Map Learning Exercises

Types of Galaxies

Question Which of these galaxies are classified as spirals?

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[Top Row: Adam Block/Steve Mandel/Jim Reda and Students/NOAO/AURA/NSF; NASA, ESA, and the Hubble Heritage Team [STScI/AURA], acknowledgement: A. Zezas and J. Huchra [Harvard-Smithsonian Center for Astrophysics]; Jean-Charles Cuillandre/Canada-France-Hawaii Telescope Bottom Row: European Southern Observatory; Jean-Charles Cuillandre/Canada-France-Hawaii Telescope/Science Source; Karl Gebhart (University of Michigan), Tod Lauer (NOAO), NASA]

{"title":"one","description":"Correct. ","type":"correct","color":"#ffffff","code":"[{\"shape\":\"rect\",\"coords\":\"90,178,93,179\"},{\"shape\":\"rect\",\"coords\":\"2,2,465,409\"}]"} {"title":"three","description":"That's an elliptical galaxy. Try again.","type":"incorrect","color":"#ffffff","code":"[{\"shape\":\"rect\",\"coords\":\"90,178,93,179\"},{\"shape\":\"rect\",\"coords\":\"498,4,747,194\"}]"} {"title":"six","description":"That's an elliptical galaxy. Try again.","type":"incorrect","color":"#ffffff","code":"[{\"shape\":\"rect\",\"coords\":\"90,178,93,179\"},{\"shape\":\"rect\",\"coords\":\"471,202,744,407\"}]"}

Correct.

Please try again.

Question Which of these galaxies are considered "barred"?

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{"title":"one","description":"Try again.","type":"incorrect","color":"#ffffff","code":"[{\"shape\":\"rect\",\"coords\":\"90,178,93,179\"},{\"shape\":\"rect\",\"coords\":\"2,2,183,192\"}]"} {"title":"two","description":"Try again.","type":"incorrect","color":"#ffffff","code":"[{\"shape\":\"rect\",\"coords\":\"90,178,93,179\"},{\"shape\":\"rect\",\"coords\":\"189,2,489,192\"}]"} {"title":"three","description":"That's an elliptical galaxy. Try again.","type":"incorrect","color":"#ffffff","code":"[{\"shape\":\"rect\",\"coords\":\"90,178,93,179\"},{\"shape\":\"rect\",\"coords\":\"498,4,747,194\"}]"} {"title":"four","description":"Correct.","type":"correct","color":"#ffffff","code":"[{\"shape\":\"rect\",\"coords\":\"90,178,93,179\"},{\"shape\":\"rect\",\"coords\":\"3,202,465,407\"}]"} {"title":"six","description":"That's an elliptical galaxy. Try again.","type":"incorrect","color":"#ffffff","code":"[{\"shape\":\"rect\",\"coords\":\"90,178,93,179\"},{\"shape\":\"rect\",\"coords\":\"471,202,744,407\"}]"}

Correct.

Please try again.

Question Which of these galaxies are dominated by older stars?

1TmENyv/ZocoPf7Mg16TiYRFE7IGnzzQmPWiAxD36e/O4btdl1r/hfs+JdWkujm01CIwYA==

{"title":"one","description":"Try Again.","type":"incorrect","color":"#ffffff","code":"[{\"shape\":\"rect\",\"coords\":\"90,178,93,179\"},{\"shape\":\"rect\",\"coords\":\"2,2,183,192\"}]"} {"title":"two","description":"Try Again.","type":"incorrect","color":"#ffffff","code":"[{\"shape\":\"rect\",\"coords\":\"90,178,93,179\"},{\"shape\":\"rect\",\"coords\":\"189,2,489,192\"}]"} {"title":"three","description":"Correct.","type":"correct","color":"#ffffff","code":"[{\"shape\":\"rect\",\"coords\":\"90,178,93,179\"},{\"shape\":\"rect\",\"coords\":\"498,4,747,406\"}]"} {"title":"four","description":"Try Again.","type":"incorrect","color":"#ffffff","code":"[{\"shape\":\"rect\",\"coords\":\"90,178,93,179\"},{\"shape\":\"rect\",\"coords\":\"3,202,201,407\"}]"} {"title":"five","description":"Try Again.","type":"incorrect","color":"#ffffff","code":"[{\"shape\":\"rect\",\"coords\":\"90,178,93,179\"},{\"shape\":\"rect\",\"coords\":\"209,201,461,406\"}]"}

Correct.

Please try again.