# robin: ROBust exoplanet radii from INgress/egress durations¶

Welcome to the documentation for robin, a Python package for fast calculation of exoplanet transit light curves. The package supports calculation of light curves for any radially symmetric stellar limb darkening law, using the batman integration algorithm for models that cannot be quickly calculated analytically.

In typical use, robin can calculate a million model light curves in well under 10 minutes for any limb darkening profile.