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Class Notes for ASTR 100 at University of Maryland (UMD)

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UMDASTR 100Sylvain VeilleuxFall

ASTR 100 Lecture Notes - Lecture 1: Milky Way, Terrestrial Planet, Gas Giant

OC11140076 Page
26 Jul 2017
0
Earth is part of the solar system. The solar system is a part of the milky way galaxy. The milky way galaxy is a part of the local group which contains
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UMDASTR 100Sylvain VeilleuxFall

ASTR 100 Lecture Notes - Lecture 9: Apollo 15, Net Force

OC11140073 Page
30 Jul 2017
0
Planets are subject to the same laws of motion as here on earth. Units are m/s so an example would be 10 m/s. All falling objects accelerate at the sam
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UMDASTR 100Sylvain VeilleuxFall

ASTR 100 Lecture Notes - Lecture 7: Ptolemy Iii Euergetes, Geocentric Model, Heliocentrism

OC11140073 Page
30 Jul 2017
0
Eratosthenes was the third librarian of alexandria under ptolemy iii in the hellenistic period of. Ancient greece following the conquests of alexander
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UMDASTR 100DemingSpring

ASTR 100 Lecture Notes - Lecture 17: Orbital Speed, Radiography, Future Of An Expanding Universe

OC9276603 Page
5 Jun 2016
13
Galaxy rotation curves: orbital speed of stars vs speed from the center. Do not decline as they would if total mass was only in the stars/observable: m
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UMDASTR 100Sylvain VeilleuxFall

ASTR 100 Lecture Notes - Lecture 3: Cosmic Calendar, Milky Way, Scientific Method

OC11140073 Page
28 Jul 2017
0
First, we will need to talk about scientific notation. This is the notation used by scientists to express really small or really large numbers that can
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UMDASTR 100Sylvain VeilleuxFall

ASTR 100 Lecture Notes - Lecture 2: Runaway Greenhouse Effect, Planetary System, Usain Bolt

OC11140075 Page
27 Jul 2017
0
Astro100 lecture 2: galaxies and star systems, speed of light. A solar system consists of a star and all the material that orbits it. It is also known
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UMDASTR 100Sylvain VeilleuxFall

ASTR 100 Lecture Notes - Lecture 8: Galilean Moons, Hans Lippershey, Orbital Period

OC11140074 Page
30 Jul 2017
0
Galileo galilei was an italian mathematician and astronomer who was the first to use a telescope to observe astronomical bodies. Improving on a vague d
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UMDASTR 100Sylvain VeilleuxFall

ASTR 100 Lecture Notes - Lecture 4: Scientific Modelling, Milky Way

OC11140073 Page
28 Jul 2017
0
Astro100 lecture 4: scientific method continued, celestial sphere. Scientific hallmarks: modern science seeks answers to observed phenomena that rely s
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UMDASTR 100Sylvain VeilleuxFall

ASTR 100 Lecture Notes - Lecture 10: Angular Momentum, Angular Velocity, Vise

OC11140072 Page
30 Jul 2017
0
You can only transform them from one of the following forms to another: The total momentum of interacting objects cannot change unless an external forc
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UMDASTR 100Sylvain VeilleuxFall

ASTR 100 Lecture Notes - Lecture 5: Angular Diameter, Orbit

OC11140072 Page
28 Jul 2017
0
An object"s altitude and direction indicate its location in the night sky. Horizon: all points 90 degrees from the zenith. Meridian: arc passing throug
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UMDASTR 100Sylvain VeilleuxFall

ASTR 100 Lecture Notes - Lecture 6: Tidal Locking, Full Moon, Orbital Period

OC11140073 Page
28 Jul 2017
0
Consequence of the moon"s 27. 3 day orbit around the earth. This is known as the sidereal period: how long it takes to make one orbit. Half of the moon
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