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Stellar populations inquiry

Discover the basic properties of stars and star clusters while learning reasoning skills and tools used in astronomy. Understand the different colors of thermal spectrum and delve into the unique realm of astronomy.

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Stellar populations inquiry

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Presentation Transcript

  1. Stellar populations inquiry • an introduction

  2. Activity goals • Build on Color, Light & Spectra (CLS) inquiry • Learn some basic properties of stars and star clusters • Learn the reasoning skills and tools used by astronomers and other scientists

  3. Color Light & Spectra Recap • A few key points: - COLORS OF THERMAL SPECTRUM (BLACKBODIES) • Blueish white = Hotter • RedDish = cooler • equal amounts of allcolors = WHITE • THE SUN IS A THERMAL SPECTRUM (BLACKBODY • .... AND SO IS EVERY OTHER STAR

  4. Astronomy • Different from other sciences • Can’t touch the objects we are studying! • primary data • - Images- Spectra

  5. QUESTION TIME

  6. where to start • Astronomers make lots and lots of graphs and tables • Data/Materials • - Pictures, spectra • - graph paper • Bonus material • - New knowledge from CLS

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