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![Page 1: Fun Internet Resources and the Galaxy Zoo. Hands-On Activity Resources Astronomical Society of the Pacific: .](https://reader030.fdocuments.net/reader030/viewer/2022032708/56649e585503460f94b51507/html5/thumbnails/1.jpg)
Fun Internet Resourcesand the Galaxy Zoo
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Hands-On Activity Resources
• Astronomical Society of the Pacific: http://www.astrosociety.org/education/activities/handson.html
• Nebraska Astronomy Applet Project (fun online experiments) http://astro.unl.edu/naap/
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Educational Resources
• Astronomical Society of the Pacific: http://www.astrosociety.org/education/resources/resources.html
• Ask an Astrophysicist: http://imagine.gsfc.nasa.gov/docs/ask_astro/ask_an_astronomer.html
• NASA Quest challenges (web based interactive projects): http://quest.arc.nasa.gov/
• Astronomy Picture of the Day: http://antwrp.gsfc.nasa.gov/apod/
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NASA Educators Page
• Teaching materials broken down by grade level
• Fun images
• Kids’ Club
• http://www.nasa.gov/audience/foreducators/index.html
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Minorities in Science
• The Faces of Science: African Americans in the Sciences: https://webfiles.uci.edu/mcbrown/display/faces.html
• Minorities in Science: Guide to Reference Resources: http://www.lib.lsu.edu/hum/mlk/srs119.html
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Women in Astronomy
• A resource guide to prominent women in astronomy in the past and present (requires some legwork): http://www.astrosociety.org/education/resources/womenast_bib.html
• Brief biographies of some prominent female astronomers: http://astro.berkeley.edu/~gmarcy/women/history.html
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Astronomy vs. Astrology
• Astronomers do not study horoscopes!• Discussing the difference between the two
fields can be useful for explaining the scientific method
• A fun and clear website explaining the difference between astrology and astronomy: http://www.astrosociety.org/education/astro/act3/astrology.html
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Just for Fun
• A discussion of misleading science in movies: http://www.badastronomy.com/bad/movies/index.html
and tv: http://www.badastronomy.com/bad/tv/index.html
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The Galaxy Zoo
• Over a million galaxies
• Sloan Digital Sky Survey (SDSS)– 2.5m Robotic telescope in New Mexico
• http://www.galaxyzoo.org/how_to_take_part
• Other projects related to SDSS: http://cas.sdss.org/dr5/en/proj/teachers/– Range of grade levels
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The Galaxy Zoo: Science!
• World’s largest database of galaxy shapes– Shifted
astronomer’s assumptions of color and shape
• Determined that there is no preferred direction for galaxy spirals
• Bizarre and unexplained objects!– Hanny’s Voorwerp
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Types of Galaxies• Elliptical
– E0 (circular) to E7 (flattened)
• Spiral – Bulge, disk, halo– Ordinary (S) vs. Barred
(SB)
• S0 between E7 and Sa– Have bulge, disk, no
spiral structure
• Irregular
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Types of Galaxies
M87 E1 M100 Sc
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Types of Galaxies
NGC 3351 SBb LMC Irregular
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Classifications
• Shape – Smooth or with Features?– How Round?– Edge on?– Bulge at center?– Spiral pattern? How tight? Number of Arms?– Bar feature through center of galaxy?– How prominent is the bulge?– Irregularities?
• Color• Direction of Spiral
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Getting Started
• http://www.galaxyzoo.org• http://www.galaxyzoo.org/how_to_take_part
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Getting Started
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Classifications
Smooth Features Star or Artifact
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Classification
Round In Between Cigar
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Classification – Edge On?
YES
NO
YES
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Classification
Rounded Boxy No Bulge
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Classification – Spiral Pattern?
YES
YES
NO
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Classification – Tightly Wound?
Tight
Medium
Loose
Loose
Medium
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Classification
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Classification – Central Bar?
Bar
No Bar
No Bar
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Classification – Bulge Prominence
No BulgeJust Noticeable
Obvious Dominant
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Classification – Odd Features
Merger
Irregular
Ring
Lens / Arc
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Experiment and Explore!