  We compute the celestial correlators corresponding to tree-level 5-gluon
amplitudes in the type I superstring theory. Since celestial correlation
functions are obtained by integrating over the full range of energies, there is
no obvious analog of the $\alpha' \to 0$ limit in this basis. This is
manifestly shown by a factorization of the $\alpha '$ dependence in the
celestial string amplitudes. Consequently, the question arises as to how the
field theory limit is recovered from string theory in the celestial basis. This
problem has been addressed in the literature for the case of 4-gluon amplitudes
at tree level, where the forward scattering limit of the stringy factor was
identified as a limit in which celestial Yang-Mills 4-point function is
recovered. Here, we extend the analysis to the case with five gluons, for which
the string moduli space allows for more types of limits, thus allowing to
investigate this aspect in more detail. Based on celestial data only, we study
the regime in which one arrives at the correct celestial field theory limit. We
also study other properties of the celestial string amplitudes, namely, the
conformally soft theorem, effective field theory expansion in the conformal
basis, and a map that arises in the regime of high-energy/large-scaling
dimension that connects the punctured string worldsheet to the insertion of
primary operators in the celestial CFT for the massless $n$-point string
amplitude.
