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Transcript
Astronomy ≠ Astrology Astrology Nonscientific interpretation of stars and planets based on the premise that there is a relationship between astronomical phenomena and events in the human world. Astronomy • The SCIENCE which studies celestial objects (such as stars, galaxies, planets, moons, asteroids, comets and nebulae). Constellations Defined A constellation is a specific area of the celestial sphere as defined by the International Astronomical Union (IAU). Do you see a warrior ?A hunter? Did you see this? Example of Constellation What’s this? What does this look like? Zodiac signs No more important to Astronomers than the other 76 Constellations Their uniqueness is only because they exist as an “extension” of the ecliptic plane. Dates of Aries Tropical Sidereal Name zodiac (2011) Aries zodiac Name 15 May Boundari es (2011) 21 March 15 April – – 20 April IAU Aries 19 April – 13 May Solar Brightest stay star 25 days Hamal
