Calculation of Habitable Zones

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

If you don't know the luminosity, just enter T_eff 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.

T_eff (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

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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