The seventh planet from the Sun in the solar system. Uranus orbits the Sun at an average distance of 19.2 AU. The planet has a mass 14.5 times the mass of Earth and a radius 4.0 times the radius of Earth. Uranus is a gas planet made of hydrogen, helium, and methane and has no solid surface. The planet's axial tilt is an extreme 98 degrees, causing one day on Uranus to equal 84 years, equal to the time it takes Uranus to orbit the Sun once.


Realm of the Giants The region beyond the asteroid belt is the realm...
Uranus To the eye alone, Uranus is a dull planet. It...

Radio Programs

Uranus at Opposition A good showing for “George’s Star” Sunday, October 11, 2015
Moon and Uranus Pointing out a neglected giant Tuesday, August 4, 2015
Moon and Uranus The Moon takes aim at a faint giant Monday, December 1, 2014
Uranus at Opposition Lining up a giant oddball Monday, October 6, 2014
William Herschel II Making up for lost time Friday, November 15, 2013
Uranus at Opposition II A giant entourage for a giant planet Wednesday, October 2, 2013
Uranus at Opposition Pondering some “giant” mysteries Tuesday, October 1, 2013
Double Impact Bowling over a giant planet Sunday, September 30, 2012
Uranus at Opposition Overlooking a giant planet Friday, September 28, 2012
Rings of Uranus A dark discovery for a giant planet Thursday, March 8, 2012
Venus and Uranus A chance to see a distant giant Wednesday, February 8, 2012
Uranus at Opposition Diving into an icy planet Sunday, September 25, 2011

Featured Images

Hubble Space Telescope view of Uranus
Tilted Giant Monday, October 6, 2014
Hubble Space Telescope view of planet Uranus
Blue-Green Giant Tuesday, October 1, 2013
Rings and Moons
Rings and Moons Friday, June 4, 2010
Big Blue Planet
Big Blue Planet Tuesday, June 1, 2010


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