Planet Uranus

Planet Uranus: Space News • Search • Astonomers Royal • Calendar • Data • Eclipses • Planets • Solstice • Site Map

Greenwich 2000®	Feedback	Search

Greenwich Star
More
Planet Earth
Planet Jupiter
Planet Mars
Planet Mercury
Planet Neptune
Planet Pluto
Planet Saturn
Planet Uranus
Planet Venus

Uranus

Uranus may be the strangest planet in our neighborhood because it rotates on its side. This odd configuration maybe the result of an encounter with a comet that knocked the planet sideways millions of years ago. Uranus has been visited by the spacecraft in a flyby in 1986.

Planet Profile

Mass (kg)............................................8.68 x 10^25
Diameter (km)........................................51118
Mean density (kg/m^3) ...............................1290
Escape velocity (m/sec)..............................21300

Average distance from Sun (AU).......................19.18
Rotation period (length of day in Earth hours).......17.9
Revolution period (length of year in Earth years)....84

Obliquity (tilt of axis in degrees)..................97.9
Orbit inclination (degrees)..........................0.77
Orbit eccentricity (deviation from circular).........0.047

Mean temperature (K).................................59

Visual geometric  (reflectivity)...............0.56
Atmospheric components...............................83% hydrogen, 
                                                     15% helium, 
                                                      2% methane (at depth)
Rings................................................Uranus has 
        a system of narrow, faint rings. Ring particles are dark, 
        and could consist of rocky or carbonaceous material.

>>> • Greenwich Star • More • <<<

Planet Earth • Planet Jupiter • Planet Mars • Planet Mercury • Planet Neptune • Planet Pluto • Planet Saturn • Planet Uranus • Planet Venus

is where East meets West at the (0° Longitude); World Time is set . Remember the new millennium started in .

Greenwich lies on the , a few minutes by rail or tube, or a short river cruise from central London. If you want to visit Greenwich and information on visiting London, England then see . There is the famous to visit and the . Just down river is the which is close to

The at Greenwich is in along with the and the (on which the in Washington DC, USA is based). For information on astronomy visit

The starts in Greenwich Park every Spring.

Greenwich has a long heritage; it was the birth place of and his daughters (Bloody Mary) and (The Virgin Queen). All the English monarchs can be found at .

It has seen many famous visitors from through to . This and a lot more in .

For information on all the other places in the world called Greenwich including Greenwich Village, New York City, USA then visit .

Visit the Shelf where you can buy titles old and new.

Member of the Greenwich Grid

Featured websites

The Greenwich 2000® Network of Internet websites

We welcome feedback and comments.
Please sign the Greenwich 2000: Visitors Book

Thank you for visiting Greenwich 2000®!
If you cannot stay please Bookmark Greenwich 2000 NOW!
And we look forward to seeing again you very soon!