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Class Notes for Astronomy at Western University

Astronomy 1021 Lecture 5: Astronomy – Chapter 5

find more resources at oneclass.com Astronomy Chapter 5 Motivation - All matter emits and absorbs light, bright at different wavelengths depending on composition...

Astronomy
Astronomy 1021
Robert Cockcroft
Astronomy 1021 Lecture Notes - Lecture 4: Circular Motion, List Of Association Football Teams To Have Won Four Or More Trophies In One Season, Net Force

Astronomy Chapter 4 Scalars and Vectors - Scalar (number); distance, speed - Vector (number and direction); Displacement, velocity, acceleration Speed - Tells us how far in a certain time (100kmhr) Velocity - Requires spee...

Astronomy
Astronomy 1021
Robert Cockcroft
Astronomy 1021 Lecture 3: Astronomy – Chapter 3

find more resources at oneclass.com Astronomy Chapter 3 History of Science - Astronomy has long recorded history - Civilizations had advantage if they could track...

Astronomy
Astronomy 1021
Robert Cockcroft
Astronomy 1021 Lecture Notes - Lecture 2: Equatorial Coordinate System, Celestial Equator, Constellation

Astronomy Chapter 2 2D Celestial Sphere - Stars appear to be on flat surface orbiting the earth - Imagine the earth is within a snow globe - However, we actually see in 3D, where distances of stars vary Constellations - 88...

Astronomy
Astronomy 1021
Robert Cockcroft
Astronomy 1021 Lecture Notes - Lecture 1: Astronomical Unit, Solar System, Cosmic Calendar

Astronomy Chapter 1 Star: A giant ball of hot gas that creates and emits its own radiation through nuclear fusion. Planet: A celestial body orbiting a star or stellar remnant that is massive enough to be rounded by its own...

Astronomy
Astronomy 1021
Robert Cockcroft
Astronomy 1021 Lecture Notes - Lecture 10: Radial Velocity, Methods Of Detecting Exoplanets, Light Curve

Astronomy Chapter 10 Outcomes Explain how the transit and radial velocity methods of detecting extrasolar planets work Exoplanets - Planets outside of our solar system, we are too far away from other solar systems from see...

Astronomy
Astronomy 1021
Robert Cockcroft
Astronomy 1021 Lecture Notes - Lecture 11: Near-Earth Object, Kuiper Belt, Oort Cloud

Astronomy Chapter 9 Outcomes Distinguish between asteroids, comets, dwarf planets, Kuiper belt objects by composition and location Planetesimals - These rocky, metallic, and ice on the inner and outer solar system is the m...

Astronomy
Astronomy 1021
Robert Cockcroft
Astronomy 1021 Lecture Notes - Lecture 8: Semi-Major And Semi-Minor Axes, Terrestrial Planet, Jupiter Mass

Astronomy Chapter 8 Outcomes Name the Jovian planets and give their approximate masses and orbital semi-major axes (relative to that of the Earth) and compositions; compare their overall properties to those of the terrestr...

Astronomy
Astronomy 1021
Robert Cockcroft
Astronomy 1021 Lecture 7: Astronomy – Chapter 7

Astronomy Chapter 7 Outcomes Name the terrestrial planets and their moons; give their masses and orbital semi-major axes (relative to that of the Earth) to one significant figure Mercury - Moons: 0 - Mass: 0.55Mearth - Sem...

Astronomy
Astronomy 1021
Robert Cockcroft
Astronomy 1021 Lecture 6: Astronomy - Chapter 6

Astronomy Chapter 6 Outcomes Describe basic factors about the Solar System: constituents and their orbits, mass, location in the Milky Way, how it is measured Solar System and Telescopes - Three techniques are used in stud...

Astronomy
Astronomy 1021
Robert Cockcroft
Astronomy 1021 Lecture Notes - Lecture 11: Inverse-Square Law, Angular Diameter, Fusion Power

Chapter 15: Chapter 11 The Sun: Our Star Sun - big ball of hot gas held together by its own gravity - energy travels outward until it eventually escapes the surface Suns Properties - distance was rst measured using transit...

Astronomy
Astronomy 1021
Jan Cami
Astronomy 1021 Lecture Notes - Lecture 5: Interstellar Cloud, Immanuel Kant, Scale Of Temperature

Astronomy Lecture 10 - Ch 5 and 6 Patterns of Motion - all planets are nearly circular and lie nearly in the same plane - all plantets orbit the sun in the same direction (counterclockwise) as viewed from high above the Ea...

Astronomy
Astronomy 1021
Jan Cami
Astronomy 1021 Lecture Notes - Lecture 12: Inverse-Square Law, Annie Jump Cannon, Photosphere

Lecture 16: Chapter 11 Surveying the Stars - How do other stars compare to the sun? - Is our sun special in any way? - Are there other stars just like the sun? - Can we understand differences between stars? Luminosity - th...

Astronomy
Astronomy 1021
Jan Cami
Astronomy 1021 Lecture Notes - Lecture 10: 2M1207B, 2M1207, Brown Dwarf

Lecture 15: Chapter 10 Extrasolar Planets: The New Science of Distant Worlds - direct detections - transit and radial velocity - selection effects Direct Imaging of Planets - very difcult - very small angular separation - ...

Astronomy
Astronomy 1021
Jan Cami
Astronomy 1021 Lecture Notes - Lecture 9: Comet Hyakutake, Comet Holmes, Kuiper Belt

Lecture 13: Chapter 9 Meteoroid: a small to boulder-sized particle of debris in the Solar System Meteor: The bright trail left by a neutered that enters Earths atmosphere (shooting star) Meteorite: a portion of a meteoroid...

Astronomy
Astronomy 1021
Jan Cami

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