oldgoa - astronomy introduction
TRANSCRIPT
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An Evening in Space!!
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What is Astronomy?
Astronomy is the study of anything we
see in the sky, and beyond..
Overlaps with physics, chemistry,
geology, and other sciences
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History
Early Astronomy comprised of observations
and predictions of the motions of objects
visible to the naked eye..
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With the Scientific Revolution..
Astronomers such as Copernicus,
Galileo and Kepler changed the way
people thought..
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Modern Astronomy
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Whathave you Observed?
An incomplete list:
Moon
Planets (Venus, Mercury, Mars, Jupiter, Saturn) Stars
Meteors (shooting stars)
Comets
Artificial Satellites
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Some important terms..
The Universe
Galaxy Milky Way
Nebulae
Stars
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Astronomical Measurement Units..
We talk here in Billions and Trillions of
Kms
LY = Light Years
AU (Astronomical Unit)
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Solar System Objects and
Phenomena The Sun
Eclipses
Planets & Moons
Asteroids
Comets
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Neighborhood Tour - Our Solar
System
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The Solar System
Condensed from Solar nebula about
five billion years ago
Contains Sun, planets, asteroids,
comets, and dust
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Terrestrial verses Jovian Planets
Terrestrial Planets Include:
Mercury, Venus, Earth and Mars
Jovian Planets Include:
Jupiter, Saturn, Uranus & Neptune
Also Interesting: Jovian moons
Not sure what to do with them:
Pluto/Charon
Xena
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A Simple Mnemonic
My Very Exciting Magic Carpet Just
Sailed Under Nine Palace Elephants
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Sol (our sun)
SOHO/Extreme Ultraviolet Imaging Telescope (EIT) consortium
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The Solar System
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Terrestrial Planets
Small and rocky, composed of Oxygen, Silicon, Aluminum,Calcium, Iron, and Magnesium
1. Mercury2. Venus
3. Earth
4. Mars
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MercuryMercury has
a lunar-like
geology.
Caloris Basin
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Venus
Venus
surface
has onlybeen
revealed
in thepast 10
years.
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Venus
Venus has a
young, basaltic
surface.Venus has several
times as many
volcanoes as
Earth.
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You Probably Know This One
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Mars
Mars has
the most
Earth-likegeology.
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Mars
Mars has a thin
atmosphere of
CO2.
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Mars
Familiar geologic
features/processes
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Mars
Familiar geologic
features/processes
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Mars
Mars geologic
history was
once warmerand wetter than
now.
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The Real Face of Mars
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Mars from Pathfinder
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Olympus Mons
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Mars Polar Caps
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Jovian Planets
Large, gaseous, composed mainly of hydrogen and helium
1. Jupiter
2. Saturn
3. Uranus
4. Neptune
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Jupiter
Jupiters geologic
features are all
atmospheric.
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Moons of Jupiter
Io is the most active
body in the Solar
System.
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Moons of JupiterGanymede and
Callisto are two of
the larger bodies in
the Solar System.
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Saturn
Saturn is the
furthest out of
the historical
planets.
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Saturns moons
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Uranus & moons
Uranus orbits the
Sun on its side.
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Neptune & moons
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Pluto & Charon
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Other Dwarf Planets..
Haumea
Makemake
Eris
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What we will see
The Beautiful Moon!!
Jupiter
Clusters and hopefully a Nebula..
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