Definition of an exoplanet The number of exoplanets (approximately) known to exi

Question

Definition of an exoplanet

The number of exoplanets (approximately) known to exist

What is the definition of the “habitable zone” for an exoplanet?

Pick one that you think might be a good candidate for the “new earth” in the future and explain why it is a good candidate.

Specify the distance to the star where the planet is located in light years .

Assume we have a space ship that can travel an average of 95% the speed of light- Calculate beta, the new distance that you have to travel, and how many years it will take you to reach the exoplanet.

If you leave earth at age 20, how old will your twin brother, who stays behind on earth, be by the time you reach the planet?

Explanation / Answer

Exoplanets are those which orbit the star outside the solar system.

Around 2000 exoplanets have been discovered.

Region around a star where planets with atmospheric pressure can maintain liquid water on its surface.

OGLE, which orbits a star 13000 light years away is too similar to Earth that it is called new Earth

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