Galaxy Forum Kansas 2014 -- Jerelyn Ramirez -- Sun-like Stars

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Galaxy Forum Kansas 2014 -- Jerelyn Ramirez -- Sun-like Stars

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Galaxy Forum Kansas 2014 -- Jerelyn Ramirez -- Sun-like Stars

  1. 1. Sun Like Stars Jerelyn Ramirez Kansas Astronomical Observers
  2. 2. 2
  3. 3. 3 Where are the Stars like our Sun? Are all the stars we see in the night sky like our Sun?
  4. 4. 4 TYPES OF STARS IN OUR GALAXY 90% Healthy Stable 9% White Dwarfs 1% Giants
  5. 5. 5 TYPES OF STARS IN OUR GALAXY 9% White Dwarfs 1% Giants Healthy Stable Stars 7% Yellow/ White
  6. 6. 6 TYPES OF STARS IN OUR GALAXY 9% White Dwarfs 1% Giants Healthy Stable 7% Yellow/ White 4% Hot, Blue
  7. 7. 7 TYPES OF STARS IN OUR GALAXY 9% White Dwarfs 1% Giants 4% Hot, Blue 7% Yellow/ White Healthy Stable 79% Cool Red
  8. 8. 8 But what do we mostly see with just our eyes? 9% White Dwarfs 1% Giants 4% Hot, Blue 7% Yellow/ White Healthy Stable 79% Cool Red We see the giants We see the hot, bluish stars
  9. 9. 9 Orion < Giant < Giant Giant > < Giant < Hot Bluish + Giant (Double star) < Giant Giant >
  10. 10. 11 Triangle < Giant < Giant < Yellow: Giant + Blue: Hot Bluish (Double star - Albireo) < Giant < Hot Bluish < Giant Giant > < Hot Bluish Giant Hot Bluish >
  11. 11. 13 Big Dipper& Polaris Big Dipper & Polaris < Giant < Mizar & Alcor: Both are Hot Bluish Polaris: Giant > Hot Bluish > < Hot Bluish Hot Bluish > < Hot Bluish Hot Bluish >
  12. 12. 15 Cassiopeia < Giant < Giant Giant > < Giant < Hot Bluish Sun-like Star >
  13. 13. 17 Cetus Tau Ceti >
  14. 14. 19
  15. 15. 20 Kepler Search Area Vega Deneb Altair March 6, 2009
  16. 16. 21
  17. 17. 22 How much of the Galaxy are we searching? How much of the Galaxy are we searchig? How much of the Galaxy did we search? Solar System here Image credit: NASA, STScI
  18. 18. 23 How much of the Galaxy did we search? Solar System here Image credit: NASA, STScI
  19. 19. 24 How much of the Galaxy did we search? Image credit: NASA, STScI Solar System here THIS MUCH !
  20. 20. 25 Kepler would be searching an area about the size of Connecticut. Kepler Search Area Our whole Solar System would be this big Imagine, if you shrunk our solar system to a little larger than a quarter: How big an area is that? would span North America. Our Milky Way Galaxy
  21. 21. You see less than 5% of the stars with an unaided eye. 26

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