Goldilocks zone
habitable zone
circumstellar habitable zone , CHZ (abbreviation)

It is looking for planets in the habitable zone of stars.

There can be no planets in this star's habitable zone.

The rich, who live near the median of the habitable zone.

The habitable zone forms a ring around the central star.

The habitable zone varies with the type and age of the central star.

There's one world in the habitable zone that has a couple of small moons.

The habitable zone would move farther out from the Sun.

Nevertheless, some research places it within the star's habitable zone.

It is believed to be in the star's habitable zone.

This however says nothing of their position in relation to the habitable zone.