1 AST114 Notes (Birth of Astronomy) - AST114 Notes Birth of...

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AST114 NotesBirth of AstronomyPicture of the day:Celestial Sphere: Imaginary sphere around the Earth on which objects in the skyreside.-Celestial Poles (Polaris) (when the north pole extends into the celestialsphere)-Celestial EquatorZenith: The point directly above your head.Horizon: Where the celestial sphere meets the ground. It goes 360 degrees around.***The altitude of north pole will be equal to the altitude of the observer***TERMS:Circumpolar zone: Area around the north/south celestial pole.Constellations: Star patterns – the sky is now broken into 88 sectors.Planets: Wanderers in the sky.Ecliptic: Apparent path of the sun through the stars. It is inclined at the 23 degrees dueto the earth’s axis.Zodiac: 18 degree wide belt centered on the ecliptic.***KNOW THE ZODIAC SIGNS:-Capricornus-Aquarius-Pises-Aries-Taurus-Gemini-Cancer-Leo-Virgo-Libra-Scorpius-Ophiuchus-SagittariusANCIENT ASTRONOMY

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Term
Spring
Professor
Wolf
Tags
Astronomy, Zodiac Signs, Nicolaus Copernicus, Galileo, Celestial equator, north south celestial pole

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