The Planet Jupiter

Jupiter (the astrological sign G) is a planet, average distance from Sun 5.2 a. E. (778,3 million km), the sidereal orbital period of 11.9 years period of rotation (cloud layer near the equator) approx. 10 h, equivalent to the approx. diameter of 142 800 km, the mass of 1.90·1027 kg, atmospheric Composition: H2, CH4, NH3, He.

Jupiter is a powerful source of thermal radiation has a radiation belt and an extensive magnetosphere. Jupiter has 16 satellites (Adrastea, Metis, Amalthea, Phoebe, IO, Europa, Ganymede, Callisto, Leda, Himalia, Lysithea, ELARA, Ananke, Carme, Pasiphae, Sinope), and the ring is approx. 6 thousand km, almost directly adjacent to the planet.

Jupiter, fifth from the Sun largest planet in the Solar system, the largest of giant planets.

Jupiter moves around the Sun in nearly circular elliptical orbit, whose plane is inclined to the Ecliptic plane at an angle of 1°18,3′. The minimum distance of Jupiter from the Sun 4.95 a. E. a maximum of 5.45. E. average – 5.2 a. E. (1 and. E. = 149.6 million km).

The equator is tilted to the orbital plane at an angle of 3°5′; because of the smallness of this angle seasonal variations on Jupiter is expressed very weakly.

Jupiter’s motion around the Sun at an average speed 13,06 km/s, completes one rotation in 11, 862 earthly years. The distance of Jupiter from Earth varies in predlahat 188 to 967 million km In opposition to Jupiter is visible as a yellowish star of magnitude of -2.6; of all the planets is inferior in lustre only to Venus and Mars during the great opposition of the latter.

Jupiter has no solid surface, therefore, speaking about its size, indicate the radius of the upper boundary of the clouds, where the pressure is about 10 KPa; the radius of Jupiter at the equator is equal to 71400 km.

In the atmosphere of Jupiter are clearly visible parallel to the plane of its equator, layers, or zones, rotating around a planetary axis with different angular velocities. Most rapidly rotating Equatorial zone – the period of her treatment 9 h 50 min 30 s, 5 min 11 with less than the period of rotation of the polar zones. So quickly does not rotate no other planet in the Solar system.

The mass of Jupiter is 1,899 H 1027 kg that in USD 317.8 times the mass of Earth, but the average density is 1.33 g/cm3, i.e. 4 times less than Earth. The acceleration of gravity at the equator of 23.5 m/S2.

In the southern temperate latitudes of Jupiter slowly moved the oval Great Red Spot whose transverse dimensions of 30-40 thousand kilometers For a hundred years, it completes about 3 turns. The nature of this phenomenon is still unclear.

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