Habitable Zone of a Star

Habitable Zone of a Star

The circumstellar habitable zone (CHZ), or simply the habitable zone, is the range of orbits around a star within which a planetary surface can support liquid water given sufficient atmospheric pressure.

To find another planet like Earth, astronomers are focusing on the ‘habitable zone’ around stars–where it’s not too hot and not too cold for liquid water to exist on the surface.

Image: NASA.gov

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