The recent fly-by of Uranus by the Voyager 2 spacecraft provided a singular opportunity to measure one of the fundamental but poorly known physical properties of the planet, its intrinsic rotation period. Earth-based photometric and spectroscopic estimates of the 'atmospheric' period vary greatly, ...
and a mass of about 14.5 times that of the earth. Like the other ice giant, Neptune, Uranus has a relatively thick atmosphere of hydrogen, helium, and methane; a relatively low density; and a rapid period of rotation of about 17.9 hr, which causes a polar flattening of over 6%. However...
(Celestial Objects) one of the giant planets, the seventh planet from the sun, sometimes visible to the naked eye. It has 27 satellites, a ring system, and an axis of rotation almost lying in the plane of the orbit. Mean distance from sun: 2870 million km; period of revolution around ...
The Interior of Uranus Our knowledge of the internal structure of Uranus is inferred from the planet's radius, mass, period of rotation, the shape of its gravitational field and the behavior of hydrogen, helium, and water at high pressure. Its internal structure is similar to that of Neptun...
Fast Rotation: Uranus has a rotation period of almost 17 hours and 14 minutes. This means that a day on Uranus lasts 17 hours and 14 minutes. The unusual tilt of the axis of rotation of Uranus has consequences on its rotation. At certain times of the Uranian year, one of the planet'...
TheSurface Accelerationof the planet is 8.69 m/s2. The time the planet takes to orbit (Orbital Period) round theSunis 30,685.4 days or roughly 84.1 Earth Years. Thelength of a dayon the planet is 17.24 hours, i.e. the time it takes to revolve once on its axis. ...
Our Solar System is a pretty calm place these days, all things considered, but that wasn’t always the case. In the period when the planets … Science Mike Wehner 6 years ago Scientists just figured out what Uranus smells like, and the jokes write themselves ...
The rotation period of Neptune's upper atmosphere Significant variations in the near-infrared brightness of Neptune during July and August 1980 were observed. These observations show a well-defined, large-... RH Brown,DP Cruikshank,AT Tokunaga - 《Icarus》 被引量: 85发表: 1981年 Statistical Stu...
Uranus’ equatorial plane, which means it rotates perpendicular to the Sun. This means that its northern and southern hemispheres face either directly towards the Sun or away from it at the solstices, which results in an extreme seasonal cycle of permanent day or night for a period of 42 ...
Planetary RotationToroidal PlasmasConsideration of the pointing direction and rotation period of the spin of Uranus suggests that a novel kind of day-to-night ionospheric flow system may exist there. For equatorial distances r r c , smooth transition at the contact point between the ionospheric ...