He was also one of the first to calculate the orbit of the first asteroid, 1 Ceres, in 1801.

This extended corona is a unique feature of Uranus.

Belinda ( ) is an inner satellite of the planet Uranus.

Desdemona ( ) is an inner satellite of Uranus.

But it visited Jupiter, Saturn, Uranus and Neptune.

It would take about twenty years to get to the Uranian system after departing Saturn.

In the Voyager 2 images Cordelia appears as an elongated object with its major axis pointing towards Uranus.

Like the other giant planets, Uranus has a ring system, a magnetosphere, and numerous moons.

Titania is the largest of the moons of Uranus and the eighth largest moon in the Solar System at a diameter of .

Uranus has 27 named moons, five of which are massive enough to have achieved hydrostatic equilibrium.

There are another 13 inner moons that orbit within Uranus's ring system, and another nine outer irregular moons.

In this respect the rings of Neptune are similar to faint dusty bands observed by Voyager 2 between the main rings of Uranus.

They went on to spring the trap of Operation Uranus, the code name for the planned encirclement and annihilation of the German Sixth Army and Fourth Panzer Army.

Herschel discovered the planet Uranus, which he at first named Georgium Sidus (George's Star) after the King, in 1781.

John Herschel almost discovered Neptune the same way his father, William Herschel, had discovered Uranus in 1781, by chance observation.

There are no active plans at present to return to study the moon in more detail, although various concepts such as a Uranus orbiter and probe are proposed from time to time.

The only close up images of Ariel were obtained by the Voyager 2 probe, which photographed the moon during its flyby of Uranus in January 1986.

Uranus, the seventh planet of the Solar System, has 27 known moons, all of which are named after characters from the works of William Shakespeare and Alexander Pope.

Exploration So far the only close up images of Umbriel have been from the Voyager 2 probe, which photographed the moon during its flyby of Uranus in January 1986.

The rings of Neptune are made of extremely dark material, likely organic compounds processed by radiation, similar to that found in the rings of Uranus.

During its previous northern solstice in 1944, Uranus displayed elevated levels of brightness, which suggests that the north pole was not always so dim.

For example, Venus is approximately 0.33 AU farther out from the Sun than Mercury, whereas Saturn is 4.3 AU out from Jupiter, and Neptune lies 10.5 AU out from Uranus.

Most of the remaining inner satellites were discovered by spacecraft Voyager 1 and Voyager 2 during their flybys of Jupiter (1979), Saturn (1980), Uranus (1986) and Neptune (1989).

Exploration So far the only close up images of Titania have been from the Voyager 2 probe, which photographed the moon during its flyby of Uranus in January 1986.

The names of all four satellites of Uranus then known were suggested by Herschel's son John in 1852, at the request of William Lassell, who had discovered the other two moons, Ariel and Umbriel, the year before.

Unlike most planetary moons, which are named from antiquity, all the moons of Uranus are named after characters from the works of Shakespeare and Alexander Pope's work The Rape of the Lock .