3 Data

 Between April, 26th and May, 5th 1993, about 40 photographs of the Milky Way have been obtained with the GAUSS-Camera using the various filters described in Sect. 2. Each of them has a field of view of $140^\circ$. For this work, the best images in each filter have been chosen, four at 217nm and three at 280nm. Their properties are given in Table 1.

  

Table 1: Filter, detector, center coordinates, hour, and exposure-time of the selected photographs

The images have been digitized with the PDS machine of the Astronomical Institute of the Westfälische Wilhelms-Universität, Münster, Germany, using a diaphragm of $\rm 20\,\mu m \times 20\,\mu m$ and a step size of $\rm 10\,\mu m \times 10\,\mu m$. This corresponds to a resolution of $0\hbox{$.\!\!^\circ$}05$ in the sky.