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Transcript of Goldilocks Planets
Jessica Rossi Earth-like planet
orbits a sun-like star
Its path of orbit falls in the "Habitable Zone" A band of orbits that is
the perfect distance
from a sun-like star to
contain liquid water
and possibly support life. "Habitable Zone" Kepler-22b Discovered December 5, 2011
It is the first confirmed planet with a measured radius to orbit a star other than our sun and fall into the habitable zone
radius is 2.4x the radius of Earth and has an orbit of 290 days around its host star
average surface temperature of 72 F
600 light years away
Host star is both smaller and cooler than our sun Kepler Satellite Its purpose is to observe a portion of the Milky Way Galaxy and discover Earth-sized planets in the habitable zone
To find possible planets, it observes a rich star field in space.
The starlight of the parent star dims when a possible planet passes in front of it.
The planets it discovers that fall into the "habitable zone" are the ones that qualify as Goldilocks planets
As of February 27, 2012 it has identified 2,321 possible planets, some of those in the "habitable zone" Another Goldilocks planet, HD 40307 shown in the "Habitable Zone" compared to Earth Importance Kepler 22B is the first discovery that indicates the possibility of extra-terrestrial life
Research provides insight into what makes a planet 'habitable'
further investigation may prove other planets habitable for humans. The Drake Equation formulated in 1961 by Frank Drake
mathematically estimates the number of worlds that hold intelligent life capable of communication
estimates there are 10,000 of these civilizations in the Milky Way capable of communication The Equation Bibliography "ArXiv.org Astro-ph ArXiv:1112.1640." [1112.1640] Kepler-22b: A 2.4 Earth-radius
Planet in the Habitable Zone of a Sun-like Star. N.p., n.d. Web. 08 Jan. 2013.
"Blog." Goldilocks Planets: This Oneâs Just Right. N.p., n.d. Web. 08 Jan. 2013.
"Getting to Know the Goldilocks Planet - NASA Science." Getting to Know the
Goldilocks Planet - NASA Science. N.p., n.d. Web. 08 Jan. 2013.
"Kepler Confirms First Planet in Habitable Zone of Sun-like Star - NASA Science."
Kepler Confirms First Planet in Habitable Zone of Sun-like Star - NASA Science. N.p., n.d. Web. 08 Jan. 2013.
"Smithsonian.com." Surprising Science Mythical Particles Goldilocks Planets and More
Top 5 Surprising Scientific Milestones of 2012 Comments. N.p., n.d. Web. 08 Jan. 2013.
"What Is The Drake Equation?" What Is The Drake Equation? N.p., n.d. Web. 08 Jan. 2013. Some of the Goldilocks planets orbit closer to their host stars than the Earth does to the sun.
As a result they are more susceptible to stellar eruptions and solar flares.
Many of these stars are hundreds to thousands of light years away.
This distance makes the planets hard to get to and difficult to study
Multiple Choice Questions 1.What is a Goldilocks Planet?
a. An earth-like planet
b. A planet that orbits a sun-like star
c. A planet who’s orbit falls in the “Habitable Zone”
d. All of the above
2.What is Kepler 22b?
a. The name of a sun
b. A type of space rock
c. The planet found by Kepler
d. A species of bacteria found on Goldilocks planets
3.What does the Drake Equation do?
a. Mathematically estimates the number of worlds that hold intelligent life capable of communication
b. Estimates how many planets there are in a solar system
c. Is used to find the circumference of a triangle
d. Estimates the area of a planet The Problem D. is correct! C. is correct! A. is correct! Other Goldilocks Planets -Gliese 581 g
-Gliese 667 Cc
-HD 85512 b
-GJ 1214 b
-55 Cancri f