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Chapter 15 Stars, Galaxies, & the Universe

Chapter 15 Stars, Galaxies, & the Universe. Vocabulary to Know Black hole Nuclear fusion Parallax Pulsar Quasar Supernova Spectrum

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Page 1: Chapter 15 Stars, Galaxies, & the Universe. Vocabulary to Know Black hole Nuclear fusion Parallax Pulsar Quasar Supernova Spectrum

Chapter 15 Stars, Galaxies, & the Universe

Page 2: Chapter 15 Stars, Galaxies, & the Universe. Vocabulary to Know Black hole Nuclear fusion Parallax Pulsar Quasar Supernova Spectrum

Vocabulary to Know

• Black hole• Nuclear fusion• Parallax• Pulsar• Quasar• Supernova• Spectrum

Page 3: Chapter 15 Stars, Galaxies, & the Universe. Vocabulary to Know Black hole Nuclear fusion Parallax Pulsar Quasar Supernova Spectrum

Key Concepts

• Color of a star & temperature

– Red stars are the ____________

– Blue stars are the ___________

Page 4: Chapter 15 Stars, Galaxies, & the Universe. Vocabulary to Know Black hole Nuclear fusion Parallax Pulsar Quasar Supernova Spectrum

• A spectroscope give astronomers info about a stars ______________ & _____________

Key Concepts

What do the black lines indicate?

Page 5: Chapter 15 Stars, Galaxies, & the Universe. Vocabulary to Know Black hole Nuclear fusion Parallax Pulsar Quasar Supernova Spectrum

• Absolute Magnitude vs Apparent Magnitude

– Apparent magnitude is bright a star as viewed

from Earth

– Absolute magnitude is seeing how bright each star

would be if all stars were 32.6 light years away

from Earth.

Key Concepts

Page 6: Chapter 15 Stars, Galaxies, & the Universe. Vocabulary to Know Black hole Nuclear fusion Parallax Pulsar Quasar Supernova Spectrum
Page 7: Chapter 15 Stars, Galaxies, & the Universe. Vocabulary to Know Black hole Nuclear fusion Parallax Pulsar Quasar Supernova Spectrum

Key Concepts – Life Cycle of a Star

Page 8: Chapter 15 Stars, Galaxies, & the Universe. Vocabulary to Know Black hole Nuclear fusion Parallax Pulsar Quasar Supernova Spectrum

Key Concepts:

HR Diagram

Hint:

TEST QUESTION

Page 9: Chapter 15 Stars, Galaxies, & the Universe. Vocabulary to Know Black hole Nuclear fusion Parallax Pulsar Quasar Supernova Spectrum

• Time …. Approximately 14 billion years ago• All matter was compressed• Pressure caused an explosion• Extreme heat to cooling within seconds• Cosmic radiation– Noise left over from Big Bang

Key Concepts – Big Bang Theory