Ravi Kumar Kopparapu

Research Scientist (NASA Goddard)
8800 Greenbelt Road
NASA Goddard Space Flight Center
Greenbelt, MD 20771
Phone: 225.678.0058

Calculation of Boundaries

Enter planetary radius.

Table of planetary radius and stellar flux boundaries can be downloaded from here.

(If you want to calculate the boundaries, download this fortran code) . Table of Coefficients can also be downloaded.

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

Rp (units of R_Earth) Allowed values are: 0.5, 1.0, 1.75, 3.5, 6, 14.3 RE.

Species Condensation Flux Boundary

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

"Exoplanet Classification and Yield Estimates for Direct Imaging Missions" Kopparapu et al.(2018), Astrophysical Journal,     arXiv link