habitable zone

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Related to Habitability zone: Circumstellar habitable zone

habitable zone

the area around a star (such as the sun) in which there is sufficient energy present to sustain life.
References in periodicals archive ?
The boundaries of the "habitability zone" around each star are plotted, and information about the likelihood of terrestrial category plants existing in each system is included as well.
Recent studies, Selsis said, show that the habitability zone of Gliese 581 extends farther than originally thought, placing planet Gliese 581d, which flanks Gliese 581g on the side farther from the star, in the habitability zone, too.
But Selsis cautions that being in the all-important "habitability zone" where temperatures are right for life as we know it is "necessary, but certainly not sufficient." The planet could have formed without any water.