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Class Notes for Astronomy at Tufts University

AST-0009 Lecture Notes - Lecture 1: Binary Star, Hyperfine Structure, Celestial Equator
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find more resources at oneclass.com Concepts of the Cosmos, 1/23/17  Big Questions: o Where are we? o Where did we come from? o Where are we going?  geocentric model of the Univers...

Astronomy
AST-0009
Ginsburg
AST-0009 Lecture Notes - Lecture 3: Hockey Puck
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Newton’s Laws Isaac Newton (1642-1727) - Created first model to explain gravity - Formulated three laws of motion and the law of gravitation—describe the motion of our physical world - Rationalize an...

Astronomy
AST-0009
Danilo Marchesini
AST-0009 Lecture Notes - Lecture 4: Electromagnetic Spectrum, Spectroscopy, Photon
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Spectroscopy: Part I - Newton argued that light was composed of little particles - Huygens suggested light travels in the form of waves - Maxwell, Young, Einstein and others showed light behaves BOTH like a particl...

Astronomy
AST-0009
Danilo Marchesini
AST-0009 Lecture Notes - Lecture 6: Reflecting Telescope, Radiography, Hubble Space Telescope
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Light and Telescopes - Telescope is a tool used to gather light from objects in the universe o Refracting telescope uses a glass lens to concentrate incoming light  First kind (Galileo’s) ...

Astronomy
AST-0009
Danilo Marchesini
AST-0009 Lecture Notes - Lecture 1: Orbital Period, Ellipse, Deferent And Epicycle
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History of Astronomy: Part I How big is the Universe? - Milky Way is one of about 100 billion galaxies - 10^11 stars times 10^11 galaxies=10^22 stars “Astronomical numbers” in the economy are really “economical”...

Astronomy
AST-0009
Danilo Marchesini
AST-0009 Lecture Notes - Lecture 11: Spiral Galaxy, Iceberg, Gravitational Lens
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Chapter 15-16 Notes - Flat rotation curve tells a different story o Should be an equal amount of mass distributed everywhere throughout the galaxy’s disk and halo o Fewer stars emitting light as...

Astronomy
AST-0009
Danilo Marchesini
AST-0009 Lecture Notes - Lecture 5: Emission Spectrum, Continuous Spectrum, Radar Gun
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Atomic Structure and Emission Spectra - A nucleus is about 10 -15m in size and the first electron orbits out at 10m o Atom is comprised mostly of empty space  If nucleus is the size of orange ...

Astronomy
AST-0009
Danilo Marchesini
AST-0009 Lecture Notes - Lecture 8: Main Sequence, Red Giant, White Dwarf
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Chapter 12 Notes - Lives of Stars o Stars condense from clouds of gas and dust (interstellar medium) that exist throughout the disk of the galaxy  Interstellar Medium (ISM): gas (hydr...

Astronomy
AST-0009
Danilo Marchesini
AST-0009 Lecture Notes - Lecture 7: Human Eye, Binoculars
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Chapter 11 Notes - Stars are classified by their spectra as O, B, A, F, G, K, M spectral types (Oh Be A Fine Girl Kiss Me) - Very hot stars’ electrons have been stripped off from atoms so absorption lines are fai...

Astronomy
AST-0009
Danilo Marchesini
AST-0009 Lecture Notes - Lecture 12: Local Group, Boron, Accelerating Expansion Of The Universe
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Chapter 17 Notes From Reading Quiz #17: "Photons of the cosmic microwave background have traveled through space for almost 14 billion years." This statement follows from our model of the Big Bang, because the Big Bang mod...

Astronomy
AST-0009
Danilo Marchesini
AST-0009 Lecture Notes - Lecture 9: White Dwarf, Mass Transfer, Binary Star
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Chapter 13 Notes From Reading Quiz #12: An accretion disk is a disk of hot gas swirling rapidly around a white dwarf, neutron star, or black hole Stellar Lifetimes - Consider a main sequence star with 10 times the...

Astronomy
AST-0009
Danilo Marchesini
AST-0009 Lecture Notes - Lecture 10: Globular Cluster, Harlow Shapley, Milky Way
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Chapter 14 Notes Milky Way Galaxy - Above average size Spiral Galaxy - Approximately 100 billion stars with the mass of the sun - Galaxy Components o Bulge  Center of galaxy;...

Astronomy
AST-0009
Danilo Marchesini
AST-0010 Lecture Notes - Freyja

Chapter 7 04/15/2014 VENUS – A VEILED PLANET  7.1 FUNDAMENTALS (VENUS) Resembles Earth in mass and size No satellites Rotates backwards...

Astronomy
AST-0010
Kenneth R.Lang
Chapter 9.docx

Chapter 9 04/15/2014 Jupiter: A Giant Primitive Planet 9.1 Fundamentals Orbital period around sun = 12 Earth years Rotatio...

Astronomy
AST-0010
Kenneth R.Lang
Chapter 6.docx

Chapter 6 04/15/2014 MERCURY – A DENSE, BATTERED WORLD 6.1 FUNDAMENTALS (MERCURY) Planet closest to the sun Rotates very slowly, but orbi...

Astronomy
AST-0010
Kenneth R.Lang

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