It has been suggested that this article or section be merged with star
A star's habitable zone
is the region in which a terrestrial planet
of the right size could have a surface temperature that might allow for liquid water and potentially life. 
For example, if a star much similar our Sun has a lifetime of one million years and temperature of 6094K. Its habitable zone lies within 1.02AU and 1.49AU. 
- ↑ Bennet, Jeffrey, et al. "Life Around Stars." The Essential Cosmic Perspective. 4th ed. San Francisco: Pearson Education, Inc., 2008. 508-13.
- ↑ "Exploring the Habitable Zone and Central Star", CADRE design Pty. Ltd.