Differential Chromatic Refraction
=================================

These utilities are used for our various classes and functions that implement differential
chromatic refraction (DCR).

.. autofunction:: galsim.dcr.air_refractive_index_minus_one

.. autofunction:: galsim.dcr.get_refraction

.. autofunction:: galsim.dcr.zenith_parallactic_angles

.. autofunction:: galsim.dcr.parse_dcr_angles