Ravi Kumar Kopparapu

Department of Geosciences -- The Penn State University

443 Deike Building
University Park, PA 16802
Phone: 225.678.0058


  

Calculation of Habitable Zones

Enter stellar effective temperature and luminosity (Default is Sun).

If you don't know the luminosity, just enter Teff and keep luminosity = 0.

That will give you just Habitable stellar flux boundaries.

(If you want to calculate HZs for a number of stars, download this fortran code)


After entering the values in each box, just click inside each box to obtain the results.


Teff (K) Stellar Luminosity (solar units)


Conservative habitable zone limits Stellar flux compared to the Sun HZ distance from the star (AU)
Inner HZ - Moist Greenhouse (waterloss) limit
Outer HZ - Maximum Greenhouse limit


Optimistic habitable zone limits Stellar flux compared to the Sun HZ distance from the star (AU)
Inner HZ - Recent Venus limit
Outer HZ - Early Mars limit


Runaway Greenhouse limit                                  AU



If you use this calculator or the FORTRAN code, please cite the following publication:

"Habitable Zones Around Main-Sequence Stars: New Estimates" by Kopparapu et al.(2013), Astrophysical Journal, 765, 131    arXiv link