do you think there are planets orbiting other stars? ... how many?
DESCRIPTION
Introductory questions for Detecting Extrasolar Planets from Space Science Sequence Unit 4 Great Explorations in Math and Science (GEMS) http://www.lhsgems.org. Do you think there are planets orbiting other stars? ... How many?. Are all stars the same size and temperature as the Sun?. - PowerPoint PPT PresentationTRANSCRIPT
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Introductory questions for
Detecting Extrasolar Planets
from Space Science Sequence Unit 4Great Explorations in Math and Science
(GEMS)http://www.lhsgems.org
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Do you think there are planets orbiting other stars?
... How many?
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Are all stars the same size and temperature as the
Sun?
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How might the type of star affect whether it has habitable planets?
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If there is a certain zone around a star where life
might exist, what must be critical qualities of that
zone?
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What things would you want to know about a
newly discovered planet? ooo ooo
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Why would exoplanets be hard to detect?
What methods do astronomers use to find
planets?
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What’s this?
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What happens when a planet transits a star?
Make a model that you can use to demonstrate a
planet transit.
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For each team of 4–6 students:
• 1 snake book light • 1 prepared Ping-Pong ball (see
Getting Ready) • several round, opaque plastic
beads (ranging in size from 8 mm to 16 mm in diameter)
• 2 or more pipe cleaners• 1 or 2 chopsticks or
thin wooden dowels• black thread• 4" x 6” index cards
• tape
• paper or plastic bag to hold the materials
Book lights:create a model “star” by setting up a light bulb and socket in the middle of the classroom for teams to demonstrate their transits.
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What kind of orbit would allow us to see a transit?
Ball-on-stick demo
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What’s wrong with this statement:
“If a star has an orbiting planet, astronomers can
usually detect it by transit observations”
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Kepler is designed to monitor
brightness of 100,000 stars
simultaneously for over 3 years.
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Scale of the model?
Return to questions about planets (slide 6)
• Are there more questions?• Do transit observations help us
answer the questions?
More about Kepler mission...