Question

What are exoplanets? Give one example.


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Answer 1

Answer:

Exoplanets means to the numerous worlds which orbit stars other than the Earth's sun. These can vary in size and shape, ranging from small rocky exoplanets, about the same size as Mars, to gas giants which are even larger than Jupiter.An exoplanet may also be alone without a sun and permanently dark.

Examples of exoplanets:

• Gamma Cephei Ab: The first exoplanet detected, found in 1998 around the star Gamma Cephei.

• PSR 1267+12 B and C: The first pulsar planets.

• 51 Pegasi b: The first planet around a star like the Sun.

• Kepler 186f: the first Earth-size planet circling in the habitable zone of its star.

Answer 2

Answer:

Ocean World's are exoplanets which contain a substantial amount of water , either as oceans in the surface or underground. Ice giants are exoplanets which are made up of volatile compounds such as water, methane and ammonia.

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