Jupiter | has polar radius 6.7 × 109 cm | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has obliquity 3°.1 | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has core composition metallic hydrogen in a pressure-ionized liquid phase | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has atmosphere composition primarily H2 (85%) and He (14%), with traces of methane, ammonia | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has oblateness 0.065 (from Pioneer 10) | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has equatorial radius 7.135 × 109 cm = 11 REarth | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has inclination i = 1°18'18" | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has eccentricity e = 0.048 | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has magnetic field 4 gauss (data from Pioneer 10) | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has central temperature 5 × 104 K | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has central density 35 megabar | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has surface gravity 2.7 that of Earth | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has escape velocity Vesc = 61 km s-1 | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has magnetic axis offset 0.1 Jupiter radius from the center of the planet (data from Pioneer 10) | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has magnetic axis inclination 15° to the rotational axis (data from Pioneer 10) | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has has surface temperature 120 K | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has has albedo 0.51 | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has has synodic period 398.9 days | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has has mean orbital velocity 13.06 km s-1 | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has has orbital period 11.86 years | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has semi-major axis 5.203 AU | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has mean density 1.33 g cm-3< sup> | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
is a part of our solar system | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has rotational period 9h50m at equator; 9h55m at polar regions (see Systems I and II longitude). | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has mass 1.90 × 1030 g = 318 MEarth | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
has definition Fifth planet from the Sun. It is more massive than all other planets and satellites combined; if it were about 80 times more massive, it would become self-luminous due to fusion reactions. The heat flux to from the center to the surface is mainly convective. For both Jupiter and Saturn it is necessary to invoke a substantial source of internal heating (presumably gravitational contraction) to account for the surface temperature (Jupiter radiates about 2 1/2 times as much heat as it receives from the Sun). Jupiter's surface shows pronounced horizontal striations: the light layers (zones) are at a slightly higher altitude and about 15° cooler than the dark layers (belts). It is surrounded by a partial torus of atomic H in the orbit of Io. Thirteen satellites, the four outermost of which have retrograde motion, high eccentricity, and high inclination. (Jupiter XIII, discovered in 1974, has a period of 239 days; i = 26°.7, e = 0.147.) | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
is an instance of gas giant | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
is an instance of superior planet | ![has source: Abbot, D. 1984 Astronomers, Peter Bedrick Books, New York, 2001-09-27 09:32:02.0 has source: Abbot, D. 1984 Astronomers, Peter Bedrick Books, New York, 2001-09-27 09:32:02.0](facet.gif) |
is an instance of naked eye planet | ![2001-09-27 09:32:02.0 2001-09-27 09:32:02.0](facet.gif) |
naked eye planet | has motion relative to stars epicycloidal | ![2001-09-27 09:31:54.0 2001-09-27 09:31:54.0](facet.gif) |
has been observed for many centuries | ![2001-09-27 09:31:54.0 2001-09-27 09:31:54.0](facet.gif) |
has apparent magnitude brighter than 5 | ![2001-09-27 09:31:54.0 2001-09-27 09:31:54.0](facet.gif) |
gas giant | has composition Mostly made of various light elements such as gases and simple compounds | ![2001-09-27 09:31:54.0 2001-09-27 09:31:54.0](facet.gif) |
has synonym Jovian planet | ![2001-09-27 09:31:54.0 2001-09-27 09:31:54.0](facet.gif) |
planet | is a part of solar system | ![2001-09-27 09:31:54.0 2001-09-27 09:31:54.0](facet.gif) |
has orbit | ![2001-09-27 09:31:54.0 2001-09-27 09:31:54.0](facet.gif) |
celestial body | has spectra | ![2001-09-27 09:30:09.0 2001-09-27 09:30:09.0](facet.gif) |
physical object | has location or center of gravity | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has angular momentum | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has velocity | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has momentum | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has temperature | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has volume | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has extent | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |
has material | ![2001-09-27 09:27:27.0 2001-09-27 09:27:27.0](facet.gif) |