Callisto the Satellite of Jupiter Essay -- Astronomy

Its easy to see why not lots attention is paid to Callisto. For four hundred years,Callisto appeared only as the quaternate dot away when gazing at Jupiter through a telescope. It alsodidnt help Callisto gain attention by orbiting Jupiter. Jupiter may be wholeness of the most intriguingobjects that astronomers have yet to study. Jupiter is the king of the planets. With its complexbands and zones, colossal Red Spot, and sheer size, Jupiter has captured our imaginations and haspushed us to learn and explore all we go off about it. Now, with our Pioneer, Voyager, andespecially Galileo spacecrafts, we have uncovered mysteries of Callisto that give our minds andimaginations quite a workout.John D. Anderson used Radio Doppler information collected by the mystical Space Network fromfive encounters of the Galileo spacecraft with Callisto. From this data him and his team imbedthat Callisto has a connote radius of 2410.3 km, with no detectable deviation from sphericity. Theyassembled t his data measuring three principle axes, and all three axes were equal to the meanradius with a realistic error of 1.5 km (Anderson et al., 2001). This places Callisto as the third baselargest satellite in the Solar System, slightly smaller than Mercury, but 1330 km in radius largerthan Pluto.Callisto does have an melodic line. This is not comparable to the atmosphere of Titan orany other planet with a earthshaking atmosphere. Nonetheless, an off-limb scan of Callisto wasconducted by the Galileo near-infrared mapping spectrometer in hopes to detect a carbon dioxideatmosphere. Airglow in the 4.26 m carbon dioxide band was indeed observed up to 100 kmabove the surface. This indicates the presence of a beautiful carbon dioxide atmosphere withsurface pressure o... ...820 - 821.Dutch, Steven. crater Forms. Natural and use Sciences. 10 05. 1999. University ofWisconsin. 07 12. 2005 .Kivelson, M. G. et al. (1999). Journal of Geophysical Research - Space Science, 104, A3, 4609-4625Moo re J., and Malin M. (1988). Geophys. Res. Lett., 5, 225.Schenk P. (1993). Journal ofGeophysics Research, 98, 7475.Spudis, Paul. The Geology of Multi-Ring push Basins. New York Cambridge UniversityPress, 1993.Thomas, C. and Ghail, R.C.. The Internal Structure of Callisto. Lunar and Planetary Science2002 1196-1197.Thorarinsson, S. (1957) The Jkulhlaup from the Katla area in 1955 compared with otherJkulhlaups in Iceland. Jkull 7, 21-25Wagner, R., Wolf, U, and Neukum, G.. Crater Size Distribution on Callisto. Lunar andPlanetary Science 2004 1964-1965.