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Chapter 2

Chapter 2. Discovering the Universe for Yourself. SFA Star Charts. Star Chart 1 - Northern Region Star Chart 2 - Equatorial Region Star Chart 3 - Equatorial Region Star Chart 4 - Southern Region. SFA Star Chart 1. Right Ascension. North Star. “Little Dipper”.

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Chapter 2

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  1. Chapter 2 Discovering the Universe for Yourself

  2. SFA Star Charts • Star Chart 1 - Northern Region • Star Chart 2 - Equatorial Region • Star Chart 3 - Equatorial Region • Star Chart 4 - Southern Region

  3. SFA Star Chart 1 Right Ascension North Star “Little Dipper” Declination “Pointer Stars” “Big Dipper”

  4. “King” “Queen” SFA Star Chart 1

  5. Chart 1 Problem • Find the coordinates of Capella.

  6. SFA Star Chart 1

  7. Summer Solstice Ecliptic Orion Celestial Equator Vernal Equinox Autumnal Equinox

  8. “Summer Triangle” Celestial Equator Autumnal Equinox Vernal Equinox Winter Solstice Ecliptic

  9. Star Chart Exercise • 1. Where are the Zodiac Constellations? • Circle their names on the star charts. • 2. Find the coordinates of Betelgeuse and Sirius. • 3. Where is the Sun today? • Give the RA, DEC, and constellation

  10. Astrology Connection • Where is the Sun on your Birthday? • Note: Astrological signs no longer correspond to the location of the Sun on your day of birth! • Have we been reading the wrong horoscopes all this time?

  11. SFA Star Chart 4

  12. The Constellation Orion

  13. Constellations • Constellations are recognizable patterns of stars in the sky. • There are 88 constellations. (e.g. Orion) • The 12 constellations along the ecliptic on your star chart are called the Zodiac Constellations.

  14. Asterisms • Asterism are recognizable patterns of stars that is not one of the 88 constellations. • For Example: The Big Dipper

  15. The Sky Dome • Celestial Meridian • Polaris • Zenith • Celestial Equator

  16. Measuring Angles • altitude - the angle of a star above the horizon • The North Star, Polaris, is not the brightest star in the sky but remains in a fixed position in the sky. • The angle of Polaris above your horizon is the same as your latitude in degrees.

  17. Thought Exercise • Where are you if Polaris is directly overhead? • Where are you if Polaris is on your horizon?

  18. Write this down

  19. View from the Equator

  20. View from the North Pole

  21. Circumpolar Stars are stars that never set. WEB

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