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Circumpolar Habitable Zone

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TH

Taylor Hall

Transcript

Kepler-62e & Kepler 62f

Both water worlds

temperatures life friendly

Orbit 122 to 167 days

expect small atmosphere

1200 light years away

Gliese 667Cc

Other Earths

What is the CHZ?

CHZ of our Sun

Circumstellar Habitable Zone

In constellation scorpious

22 light years away

4.5 times the size of earth

Orbit = 28 days

Part of a triple star system

Other Considerations

  • WATAHH!
  • Changes over time
  • Only accounts for carbon based life

Mercury, Earth, and Mars

Measurements aren't exacts: why Mars is such a hot topic

For the Sun at present the CHZ ranges from 0.97 AU to 1.37 AU

Other scientists

put it at 0.8 AU to

1.6 AU

  • About 1/5
  • The nearest earthlike planet just 12 light-years away
  • Nasa’s planet hunting Kepler space craft
  • 42,000 stars, 603 planets fell in their habitable zone, 10 planets were about the size of earth
  • Probably missed some planets

  • Galactic Habitable Zone (GHZ)
  • Ammonia
  • Methane

Works Cited

Gliese 581g

Conclusion

  • "Circumstellar Habitable Zones." - Habitable Zones. University of Nebraska-Lincoln, n.d. Web. 01 Dec. 2013. <http://astro.unl.edu/naap/habitablezones/chz.html>.
  • "Habitable Zone (HZ)." Habitable Zone (HZ). The Worlds of David Darling, n.d. Web. 01 Dec. 2013.
  • Lewis, Tanya. "Habitable Earth-Size Planets Common Across the Universe, Study Suggests." Space.com. N.p., 4 Nov. 2013. Web. 01 Dec. 2013.
  • Howell, Elizabeth. "9 Exoplanets That Could Host Alien Life." Space.com. N.p., 6 Dec. 2012. Web. 01 Dec. 2013.
  • Dunbar, Brian. "Potentially Habitable Exoplanet." NASA. NASA, 29 Sept. 2010. Web. 01 Dec. 2013.
  • "Water Planets in the Habitable Zone." SciTech Daily. N.p., 22 Apr. 2013. Web. 02 Dec. 2013.

WE ARE SPECIAL!

Rocky world

20 light years away

tidally locked

Middle of CHZ - still need

thick atmosphere for heat

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