Zonal differences in Jupiter's atmosphere from continuum CCD photometry ofits disk

Based on our 1997 observations with a CCD camera and narrow-band filters at tached to the 1-m Assy Obsev vatory telescope, we extensively study the lat itudinal variations in limb darkening and normal albedo on Jupiter's disk a t wavelengths of 387, 445, 502, 619, and 702 nm. In addition, we carried ou t observations in 1998 with broad-band rad, green, and blue filters. Apart from a general regularity-the increase in darkening coefficient with normal albedo of Jupiter's cloud cover-there is an appreciable scatter of darkeni ng coefficients for the same albedo, which is most pronounced in the ultrav iolet. This scatter may result from differences in the optical depth of the aerosol haze above the clouds. The lack of any wavelength dependence of th e darkening coefficients is confirmed for Jupiter's polar regions, while at other latitudes, they decrease with decreasing wavelength.