H A B I TA B L E Z O N E C A L C U L AT O R

R A V I K O P PA R A P U ( N A S A G O D D A R D )

H A B I TA B L E Z O N E C A L C U L AT O R

• HZ estimates from 1-D climate model results (Kopparapu et al. 2013a, 2014). Original model from Kasting et al. (1993)

• Online interactive tool, Fortran code and Python code (provided by John Armstrong from Weber State University)

• Used in all the discoveries of confirmed terrestrial-size exoplanets in the HZ to-date.

• http://depts.washington.edu/naivpl/content/hz-calculator

• http://www3.geosc.psu.edu/~ruk15/planets/

H A B I TA B L E Z O N E C A L C U L AT O R

P Y T H O N V E R S I O N O F T H E H Z C A L C U L AT O R

(John Armstron, Weber State University)