Polarized heavy quark photoproduction in next to leading order

Results of our next-to-leading order analytic calculation for longitudinall y polarized photoproduction of heavy quarks are presented. Certain differen tial cross sections and the corresponding asymmetries are computed for ener gy ranges accessible to CERN and HERA. We argue that determination of the p olarized gluon distribution is possible at both places: at HERA certain acc eptance cuts are necessary.