In the analysis of the complex observational data about the distribution of molecular absorption on Jupiter and Saturn using a two-layer model, some conclusions have been derived about the latitudinal differences of the atmospheric structure. An important result of the interpretation of the observations, with full consideration of multiple scattering affects, was the estimate of carbon abundance. Calculations showed that both planets have an excess of carbon in comparison with solar abundance.
A new step in the study of the planets was begun in 1995 through a special grant from the South European Observatory that made possible the purchase of an ST-6V CCD camera manufactured by Santa Barbara Instrument Group. With this camera, observations were made of the detailed zonal spectrophotometry of Jupiter and Saturn yielding complete maps of their methane absorption distribution. An interesting finding was that on Jupiter the moderate and strong methane bands have clearly expressed zonal character, but weaker bands formed in the deeper atmospheric layers show more chaotic variations.
CCD- images of Jupiter,recorded in UV (left) and IR (right) in August 1997 with 1-meter telescope of Assy observatory.
Color CCD-images of Jupiter, synthesed from R,G,B images, recorded 6.09.1998 with 1-m telescope (21:04 UT and 21:22 UT)
CCD-image of Saturn, recorded 19 September 1995 with 1-meter telescope
CCD-images of Saturn, recorded through different filters in 1997
Color CCD-image of Saturn (6 September 1998, 1-meter telescope)