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Exoplanets

Exoplanets. Introduction By Miranda Hollow. What is an exoplanet?. Also referred to as an extrasolar planet. Exoplanet: n. a planet that orbits a star outside the solar system. 344 exoplanets have been detected. Masses suggest they are jovian- Giant gaseous planets- “Hot Jupiters”

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Exoplanets

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  1. Exoplanets Introduction By Miranda Hollow

  2. What is an exoplanet? • Also referred to as an extrasolar planet. • Exoplanet:n. a planet that orbits a star outside the solar system. • 344 exoplanets have been detected. • Masses suggest they are jovian- Giant gaseous planets- “Hot Jupiters” • Large sizes- low densities • Many of them orbit quite close to their stars or have highly elliptical orbits.

  3. A hot Jupiter would have a temperature far too high for gases such as ammonia or water vapor to condense into liquid droplets or ice flakes. • Instead they would have clouds of “rock dust” containing common minerals. • 1 in 10 show evidence of planets around them. • We have been catching elephants with “elephant traps”

  4. Questions • Why are extrasolar planets difficult to detect? ∙ What are the methods being used to detect extrasolar planets? 1.Talk in your groups and come up with at least two reasons 2. Write down your reasons on the whiteboard.

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