This is a graph of the temperature profile.
Click on image for full size
Image from: Ethane Haze in the Atmosphere of Uranus
Uranus' Methane Clouds
cloud deck of Uranus is found low in the troposphere
. The methane clouds are the only clouds to be found on Uranus. The location of the clouds is predicted based upon the temperature at which methane vapor will condense. The altitude at which the temperature of condensation occurs, according to the temperature profile shown in the figure by a straight black line, is where the clouds ought to be.
The graph shows that the temperature in the troposphere goes from about -243° F (120 kelvins) to about -370° F (55 K). The clouds are found at about 50 km below the tropopause, where the temperature becomes about 70 K.
Shop Windows to the Universe Science Store!
Learn about Earth and space science, and have fun while doing it! The games
section of our online store
includes a climate change card game
and the Traveling Nitrogen game
You might also be interested in:
The Kelvin scale is a temperature scale that is often used in astronomy and space science. You are probably more familiar with the Celsius (or Centigrade) scale, which is part of the metric system of measures,...more
Besides methane, Uranus' atmosphere contains more sophisticated atmospheric molecules such as ethane gas, acetylene, and diacetylene. All these molecules form layers of haze at different altitudes high...more
The clouds of Uranus, composed of methane crystals, are found very low in the troposphere, and are difficult to distinquish below the smog haz es of the planet's atmosphere. False color is used, in the...more
This is the temperature profile of Uranus' troposphere. The temperature becomes cooler with height until the tropopause, or "top" of the troposphere is reached. The tropopause is defined to be the altitude...more
The mesosphere of Uranus is a region of balance between warming and cooling. That essentially means that nothing happens there. Except for diffusion, the atmosphere is still. Upper reaches of the atmosphere,...more
As on Earth, the atmosphere of Uranus consists of a troposphere, stratosphere, mesosphere, and thermosphere. The troposphere is the region where the visible clouds are to be found. The stratosphere, as...more
On Uranus, as on Jupiter, the winds in the belts and zones blow first in one direction, then in the opposite direction. Wind blows east in a belt, and west in a zone. The clouds rise up in a belt, and...more