Uran je sedmi planet od Sonce.
Although it is faintly visible to the naked eye, it was not recognized as a planet in ancient times due to its dimness and slow movement across the sky. Uranus became the first planet discovered using a telescope. Uniquely, Uranus is tilted on its side, with an axial tilt of about 98 degrees, causing it to appear as though it is rolling around the Sonce during its orbit.
Profil planeta Uran | |
|---|---|
Equatorlal Diameter | 51.118 km |
Polar Diameter | 49,946 km |
Mass | 8,68 × 10 ^ 25 kg (15 Zemelj) |
Moons | 27 (Miranda, Titania, Ariel, Umbriel & Oberon) |
Rings | 13 |
Orbit Distance | 2.870.658.186 km (19,19 AU) |
Orbit Period | 30,687 days (84 years) |
Surfface Tempature | -216 ° C |
Atmosphere | Hydrogen and helium; methane gives blue-green color. |
Surface Gravity | 8.69 m/s² (≈ 89% of Earth) |
First Record | 13. marec 1781 |
Recorded By | William Herschel |
Uranus represents astrology itself.
It is the planet of liberation, rebellion, revolution, and radical change, yet its power is rooted in the structure established by Saturn. Just as Vodnar relies on the foundations laid by Kozorog, Uranian freedom cannot exist without form, pressure, or responsibility. Without structure, there is no meaningful rupture, and without limits, liberation loses its purpose.
To truly understand Uranus in astrological interpretation, we must recognize that it rules a sign traditionally governed by Saturn. This relationship reflects an archetypal tension, echoed in mythology as the rebellion of the son against the father. Uranus challenges inherited systems, not to destroy order entirely, but to reform it. This dynamic is further emphasized by Uranus’s opposition to the Sonce, ruler of Lev, highlighting the conflict between collective awakening and individual identity.
Uranus was officially discovered in 1781 by Sir William Herschel. Although faintly visible to the naked eye, it was never recognized by ancient astronomers. Herschel initially believed it was a comet. He proposed naming it Georgian Sidus after King George III, but the name Uran, suggested by astronomer Johann Bode, was later adopted. The name comes from Ouranos, the ancient Greek god of the sky.
Uranus completes one rotation every 17 hours and 14 minutes, spinning in a retrograde direction, opposite to the rotation of Earth and most other planets.
Uranus takes 84 Earth years to orbit the Sun. Due to its extreme tilt, each pole experiences about 42 years of continuous sunlight, followed by 42 years of darkness.
While it has a hydrogen-rich outer layer like the gas giants, Uranus contains a thick icy mantle beneath its atmosphere. This mantle surrounds a rocky and icy core. Methane in the upper atmosphere gives Uranus its distinctive pale blue-green colour.
Minimum atmospheric temperatures can drop to about −224 °C, making Uranus the coldest planet ever recorded. A thick methane haze obscures storms that occur deep within its cloud layers.
Uranus has thirteen known rings, including eleven inner rings and two outer rings. These rings are dark and thin, made of dust-sized particles and small rocky fragments. They likely formed from shattered moons. The rings were first discovered in 1977, with the outer rings later identified using space telescope observations.
Unlike other planets, Uranus’s moons are named after characters from the works of William Shakespeare in Alexander Pope, including Titania, Oberon, and Miranda. These moons are frozen worlds, often composed of ice and rock. Miranda is especially unusual, with deep canyons, terraces, and dramatic surface features.
In 1986, Voyager 2 made a close flyby of Uranus, passing within 81,500 km. It returned the first detailed images of the planet, its moons, and its rings.
