Changes in the activity of Jupiter’s hemispheres
| 1Vidmachenko, AP 1Main Astronomical Observatory of the National Academy of Sciences of Ukraine, Kyiv, Ukraine |
| Kinemat. fiz. nebesnyh tel (Online) 2017, 33(6):55-60 |
| https://doi.org/10.15407/kfnt2017.06.055 |
| Start Page: Dynamics and Physics of Solar System Bodies |
| Language: Russian |
Abstract: Variations in the Earth's jovimagnetic latitude on Jupiter are more preferable for solar-induced changes in the reflective properties of the visible disk. Because of the orbit’s eccentricity (e = 0.04845), the atmosphere in the northern hemisphere receives 21 % more solar energy than in the southern hemisphere. This is because at a time close to the summer solstice, Jupiter is at perihelion. The results of our studies have shown that the ratio of the brightness of the northern and southern tropical and temperate zones is a clear factor in the photometric activity of processes in the atmosphere of Jupiter. From the analysis of observational data for the period 1962—2017, the cyclicity in the change of the activity factor of planet’s hemispheres with a period of 11.87 years was obtained. This indicates the presence of seasonal restructuring in the atmosphere of Jupiter. |
| Keywords: activity hemispheres, Jupiter, the ratio of the brightness |
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