PHOTOGRAPHIC SURFACE PHOTOMETRY OF THE SOUTHERN MILKY-WAY - IX - HIGH-RESOLUTION SURFACE PHOTOMETRIES AT 217 NM AND 280 NM

We present the first surface photometries of the Southern Milky Way (1 00 degrees less than or equal to l greater than or equal to 270 degree s; -40 degrees less than or equal to b less than or equal to 40 degree s) at 217 nm and 280 nm. The resolution is 0.degrees 25 x 0.degrees 25 . They are based on photographs obtained with the shuttle-borne GAUSS- Camera as part of the German Spacelab Mission D-2. These photometries are the extensions of the earthbound U, B, V, R photometries (Kimeswen ger et al. 1993 = Paper VII; Hoffmann et al. 1997 = Paper VIII) to the ultraviolet. The data processing was modified to adapt it to the new data. Both photometries are strongly affected by interstellar extincti on especially of local dark clouds. Hence, they provide a comprehensiv e overview of scattering caused light emission in our Galaxy.