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Textbook Notes for Astronomy at Boston University (BU)

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BUCAS AS 100Michael MendilloSpring

CAS AS 100 Chapter Notes - Chapter 9: Sulfur Dioxide, Clay Minerals, Mount Everest

15
William and caroline hershel > discovered uranus and features on mars that are similar to earth like the axis tilt, seasonal variations, a day slightly
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BUCAS AS 101Catherine EspaillatFall

CAS AS 101 Chapter Notes - Chapter 12: Giant Planet, Impact Event, Comet

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150,000 in catalogs, and probably over a million with diameter >1 kilometer. Small asteroids are more common than large asteroids. All the asteroids in
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BUCAS AS 100Michael MendilloSpring

CAS AS 100 Chapter Notes - Chapter 11.1: Smog, Equatorial Bulge, Metallic Hydrogen

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~we need to know angular size and distance to calculate an objects true size. ~because we found out the orbital periods of the moons, the orbital dista
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BUCAS AS 101Catherine EspaillatFall

CAS AS 101 Chapter Notes - Chapter 13: Adaptive Optics, Hot Jupiter, Semi-Major And Semi-Minor Axes

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Why is it so challenging to learn about extrasolar (exo) planets. A sun-like star is about a billion times brighter than the light reflected from its p
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BUCAS AS 100Michael MendilloSpring

CAS AS 100 Chapter Notes - Chapter 10: Runaway Greenhouse Effect, Coriolis Force, Dust Devil

13
The low atmospheric pressure explains why liquid water is so unstable and why astronauts cannot survive without a pressurized spacesuit. Atmosphere is
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BUCAS AS 100Michael MendilloSpring

CAS AS 100 Chapter Notes - Chapter 9-10: Thermosphere, Lunar Soil, Escape Velocity

Their small sizes mean that most of their internal heat was lost long ago, leaving them without volcanism or tectonic activity. Still have craters from
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BUCAS AS 100Michael MendilloSpring

CAS AS 100 Chapter Notes - Chapter 11: Water Cycle, Smog, Methane

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~jupiter and saturn have the most moons, each with more than 60 moons. ~we categorize jovian planet"s moons by their size and this is useful because si
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BUCAS AS 100Michael MendilloSpring

CAS AS 100 Chapter Notes - Chapter 4: Tempeh, Chemical Energy, Orbital Period

10
Chapter 4 speed: tells us how far it will go in a certain amount of time velocity: tells us both the speed and its direction (100 kilometers per hour g
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BUCAS AS 101Catherine EspaillatFall

CAS AS 101 Chapter Notes - Chapter 6: Adaptive Optics, Spectroscopy, Spectral Resolution

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Refraction: the bending of light when it passes from one substance into another. Sun appears distorted at sunset because of how light bends in earth"s
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BUCAS AS 100Michael MendilloSpring

CAS AS 100 Chapter Notes - Chapter 12: Comet Nucleus, Radiometric Dating, List Of Nearest Stars And Brown Dwarfs

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Comet, asteroids, and meteorites have the story of our solar system"s birth encoded in their compositions, locations and numbers. Asteroid means starli
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BUCAS AS 100Michael MendilloSpring

CAS AS 100 Chapter Notes - Chapter 15: Spectral Sequence, Main Sequence, Stellar Classification

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BUCAS AS 100Michael MendilloSpring

CAS AS 100 Chapter Notes - Chapter 14: Radiation, Angular Diameter, Photosphere

13
14. 1 gravitational contraction: early astronomers thought that the sun generates energy by slowly contracting in size (kelvin helmholtz) A gradually s
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