The Habitable Zone

Inside any solar system, scientific models display the distance that separates a planet from its sun, as an essential characteristic for life sustainment. For what concerns astronomy and astrobiology, the Circumstellar Habitable Zone (CHZ) defines the region around a star, within’ a planetary surface is able to maintain liquid water and so to host life. Indeed, water is considered a fundamental element, due to its main role as a solvent in many biochemical reactions. The concept is based on the most suitable conditions for life that we can observe on planet Earth, where water and emerged land support all of life forms we know so far. This evidence let scientific community to consider planets with presence of liquid water as the best candidates for life development. The Habitable Zone is an imaginary sphere that surround a star, and it scales according to the intensity of light and energy emitted by the star itself during its life. The distance within’ a planet could support life, can be calculated knowing the dimension and the brightness of its star. Estimates for the habitable zone within our Solar System range from a minimum distance of 0,95AU to a maximum distance of 1,37AU from our Sun, according to the most refered Kasting’s climate model calculations.What will be your next home planet.