  We present novel observations utilising the Cassini spacecraft to conduct an
observing campaign for stellar astronomy from a vantage point in the outer
solar system. By exploiting occultation events in which Mira passed behind the
Saturnian ring plane as viewed by Cassini, parametric imaging data were
recovered spanning the near-infrared. From this, spatial information at
extremely high angular resolution was recovered enabling a study of the stellar
atmospheric extension across a spectral bandpass spanning the 1 - 5 {\mu}m
spectral region in the near-infrared. The resulting measurements of the angular
diameter of Mira were found to be consistent with existing observations of its
variation in size with wavelength. The present study illustrates the validity
of the technique; more detailed exploration of the stellar physics obtained by
this novel experiment will be the subject of forthcoming papers.
