 Circumstellar habitable zone

The circumstellar habitable zone is the orbital range in which a specified planet and atmosphere can maintain surface liquid water. Its boundaries depend on stellar spectrum, albedo, greenhouse physics, clouds, planetary mass, and atmospheric inventory.

The circumstellar habitable zone (CHZ), often referred to as the "Goldilocks Zone," is the region around a star where conditions might be just right for liquid water to exist on the surface of a planet. This zone is critical for the potential habitability of planets, as liquid water is a key ingredient for life as we know it.