Shop Windows to the Universe

Arches National Park Geology Tour provides an extensive, visually rich description of the geology of Arches, by Deborah Ragland, Ph.D. See our DVD collection.
This is an image of Uranus compared with that of the Earth.

A Comparison of Uranus and the Earth.

This image compares Uranus with Earth. Uranus is the fourth largest planet in the solar system, much larger than Earth, and mostly made of frozen gas. The table below is a comparison of the characteristics of Uranus and Earth.

Characteristic Relative to Earth
(Earth = 1)
Absolute Value
Mass 14.5 8.68x10**28
Radius 4 25,559 km
Mean Density ----- 1.29 g/cm**3
Rotation Period 17.9 Earth hours -----
Mean Orbital
19.2 AU 2,870 x 10**6 km
Orbital Period 84 Earth years -----
Orbital eccentricity ----- 0.0461
Inclination to
ecliptic (degrees)
----- 0.774
----- -350F

Shop Windows to the Universe Science Store!

Our online store includes fun classroom activities for you and your students. Issues of NESTA's quarterly journal, The Earth Scientist are also full of classroom activities on different topics in Earth and space science!

Windows to the Universe Community



You might also be interested in:

An Overview of Uranus' Atmosphere

The plain aquamarine face of Uranus confirms the fact that Uranus is covered with clouds. The sameness of the planet's appearance shows that the planet's atmosphere is mostly composed of one thing, methane....more

An Overview of Uranus' Interior

The Giant planets do not have the same layered structure that the earthlike planets do. Their evolution was quite different than that of the earthlike planets, and they have much more gas and ice inside....more

Uranus' Moons and Rings

Uranus has // Call the moon count function defined in the document head print_moon_count('uranus'); fascinating moons and a complicated ring system. The ring is a completely different form of ring than...more

The Poles of Uranus

Uranus is the tilted planet. The axis through its North and South Poles is tilted by 98. In other words, Uranus is lying on its side! That's not all - the magnetic field of Uranus is tilted, too. The...more

An Overview of Uranus' Atmospheric Evolution

The giant planets have definitely changed since their formation. But how much remains to be seen. Most of the original air of the giant planets remains in place. (The earth-like planets lost most of their...more

Diffusion in Uranus Atmosphere

Uranus' atmosphere is made of methane, a medium sized molecule. At the uppermost reaches of the atmosphere, methane gas breaks apart due to energy from the sun and from the magnetosphere. The remins of...more

An Overview of Motions in Uranus' Atmosphere

Motions of air in the atmosphere include wind. The major winds in the Uranian atmosphere are zonal winds, which have zones blowing west and belts flowing east. Motion of air in the atmosphere can also...more

A Diagram of Uranus' Atmospheric Structure

This is the temperature profile of Uranus' entire atmosphere. The horizontal lines indicate the boundaries between the troposphere, the stratosphere, the mesosphere, and the thermosphere. ...more

Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA