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, ...
Uranus%27 rotational period The rotational period of Uranus is found to be consistent with modern values of its optical and dynamical oblateness and the theory of solid-body rotation... L Trafton 被引量: 3发表: 1977年 Uranus Diameter: 51,118 km Sidereal Period : 84.01 years Synodic Period ...
What is the period of rotation of Earth in seconds? Consider a satellite with a period of 8.5 hours. If the radius of the satellite s orbit is doubled, what is the period for new satellite s orbit? How far above the surface of the Earth is a satellite if it has an orbital period ...
Most planets' rotation is to the east, as for the Earth. Some planets (Venus, Uranus and Pluto) rotate to the west if the North Pole is defined as the one 'on top' of the planet (above the plane of our orbit). For those planets we can say they are upside down (tilt greater tha...
A period of 235 lunar months, or about 19 years in the Julian calendar, at the end of which the phases of the moon recur in the same order and on the same days as in the preceding cycle. [AfterMeton(fl. fifth centurybc), Athenian astronomer.] ...
There are no additional measurements from Uranus or Neptune with which to look for time variations in their radio periods. For conservation of energy and angular momentum reasons, true variations of the rotation period of Saturn's deep interior are not believed to be a viable explanation for the...
Assume Saturn completes a single rotation in 10.7 hours and orbits the Sun once every 1.07 x 10 What is the mass of VY Canis Majoris? What is the orbital period of Uranus? What is the orbital period of Neptune? Suppos...
Planetary RotationPlanetologySpin DynamicsUranus (PlanetAstronomical ModelsNatural SatellitesPlanetary RadiationWavelengthsA modified spectroscopic technique yields a value for Uranus' period of 23 2 +5 hr, which disagrees with the accepted value of 10.8 hr determined spectroscopically in the 1930s. Uranus...
The new result suggests an upward revision of the mass of Neptune's core. This finding may also question the accepted value of Uranus' rotational period. The first reliable wind measurements within 15° of Neptune's South Pole, based on tracking four features in Voyager images, show a 300...
What is the orbital period of Uranus? What is the moon's orbital period? What is the orbital period of Neptune? What is Mars' orbital period? What is the orbital period of the Kuiper belt? What is Jupiter's orbital period? What is Pluto's orbital period? What is Saturn's orbital per...