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astr101_01_IntroToSky.pdf - Astronomy 101 Intro to the...

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Astronomy 101Intro to the Night Sky
Overview of the ClassWe will explore the Solar System, includingformation and how ours compares to otherplanetary systems around other stars.We’ll start with what we see in our ownbackyard.
Historic Roots of AstronomyAstronomy = the oldest natural scienceOrigins in religion, mythology, and astrologyAstronomy’s earliest uses:Calendars (day, month, year, etc.)SeasonsNavigation
Days of the week were named for Sun, Moon, andvisibleplanets.
Historic Roots of AstronomyAstronomy = the oldest natural scienceOrigins in religion, mythology, and astrologyAstronomy’s earliest uses:Calendars (day, month, year, etc.)SeasonsNavigationEarly views of the Universe weregeocentric(earth-centered)Astronomy diverged from astrology during theRenaissance
The Universe from EarthWith the naked eye,we can see morethan 2000 stars aswell as the MilkyWay.6Can we see everystar in the Galaxy?Every star in theUniverse?

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Term
Winter
Professor
bennert
Tags
celestial pole, circumpolar stars, Circumpolar star

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