Uranus is the seventh planet from the Sun in our solar system. It is the third largest planet in the Solar System on the basis of diameter and the fourth largest on the basis of mass. (Uranus Distance From Sun) It is 14.5 times heavier than Earth in mass and 63 times larger than Earth in size. On average, it is much less dense than Earth – because Earth has a higher percentage of stones and other heavy materials, while Uranus has more gas.
That is why even after having a size of sixty three times bigger than the earth, it is only fourteen and a half times heavier than the earth. Although Uranus can be seen without a telescope, it is so far away and appears to be of such a medium of light that ancient scholars never gave it the status of a planet and considered it a distant twinkling star. On 13 March 1781, William Herschel announced its discovery. Uranus was the first planet to be detected by telescope.
Uranus Distance From Sun
Uranus orbits the Sun every 84 Earth years. Its average distance from the Sun is about 2.9526 billion km. The intensity of sunlight on Uranus is about 1/1400 compared to that on Earth. (Uranus Moons ) Its orbital elements were first calculated by Pierre-Simon Laplace in 1783.
Over time, discrepancies between the predicted and observed orbits began to appear, and in 1841 John Couch Adams was the first to propose that the difference may be due to the gravitational pull of an invisible planet.
Uranus has 27 known natural satellites. The names for these satellites are chosen from characters in the works of Shakespeare and Alexander Pope. There are five main satellites, Miranda, Ariel, Umbriel, Titania and Oberon. This Uranus satellite system is the least large among the gas giants, Indeed, the combined mass of these major satellites would be less than half that of a Triton alone.
The largest of these satellites, Titania, has a radius of only 788.9 km, or less than half that of the moon, but slightly larger than Saturn’s second largest moon Rhea, (Atmosphere of Uranus ) making Titania the eighth largest moon in the Solar System. makes.
The relatively low albedo of these moons varies from 0.20 for Umbriel to 0.35 for Ariel (in green light). This moon is a compressed icy-rock, composed roughly of fifty percent ice and fifty percent rock. This can include ice, ammonia and carbon dioxide.
Atmosphere of Uranus
The atmosphere of Uranus is made up of hydrogen and helium gas. It also contains some amount of water and methane gas.
These clouds made of methane gas absorb the UV rays coming from the Sun, due to which the color of the planet Uranus looks like green-blue to us. That is why it is also called Green Planet.
Along with these clouds, the air there moves at a speed of 900 km / h. But a strange thing has been noticed in this. At the equator, which is the central part of the planet, this wind moves against the speed of rotation, while near the pole it moves in the same direction.
Why and how this happens, we do not know yet. But we definitely know the atmosphere, due to the absence of any surface of the planet Uranus, its atmosphere is spread very deep inside.
Troposphere :- This level of the atmosphere extends from an altitude of -300 km to 50 km. At the bottom of the level is the 320k temperature. But this temperature decreases with altitude. At an altitude of 50 km, this temperature remains only 53K.
Stratosphere :- This level starts after the Troposphere. Which extends from an altitude of 40 km to 4,000 km.
The temperature characteristics in this level of the atmosphere are opposite to those of the Troposphere, here the temperature increases with altitude. Where the temperature is 32K at its lowest point, it reaches 850K at the top.
Thermosphere :- This is the outermost layer of the atmosphere of the planet Uranus. Which extends from an altitude of 4,000 km to 50,000 km. Despite having such an area, the temperature remains almost the same in all the places here. Between 800-850 k, The reason for the high temperature here is the methane clouds which absorb the sun’s rays and generate heat.
Uranus Planet Rings
Saturn is not the only planet in the Solar System that has rings. When the rings of Saturn were discovered, scientists thought that this is a special feature of Saturn.
But when the rings of the planet Uranus came to be known, then scientists realized that the presence of rings near the planet is its symptom.
The ring of the Uranus planet is not as big and bright as Saturn but it has 13 rings in total. It is divided into two parts. inner system and outer system.
There are 9 rings in the inner system, all of them are thin and dark in color, while the rings of the outer system are wider and slightly brighter than this. It appears slightly red and blue in color.
It is believed that these rings were formed by the collision of a celestial body 600 million years ago. Which could be true. But whatever happens, we move on.
[Uranus Distance From Sun | Moons, Atmosphere, and Rings]