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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. <ref>Bennet, Jeffrey, et al. "Life Around Stars." <u>The Essential Cosmic Perspective</u>. 4th ed. San Francisco: Pearson Education, Inc., 2008. 508-13.</ref>

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. <ref>Bennet, Jeffrey, et al. "Life Around Stars." <u>The Essential Cosmic Perspective</u>. 4th ed. San Francisco: Pearson Education, Inc., 2008. 508-13.</ref>

For example, a star much like our [[Sun]] has a lifetime of one million years and temperature of 6094K. Its habitable zone lies within 1.02AU and 1.49AU. <ref>"Exploring the Habitable Zone and Central Star", CADRE design Pty. Ltd.</ref>

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. <ref>"Exploring the Habitable Zone and Central Star", CADRE design Pty. Ltd.</ref>

== References ==

== References ==