Saturn:
1. A year on Saturn would take almost thirty Earth years.
2. Saturn is the second largest planet in the Solar System after Jupiter. It is so big that Earth could fit into it 755 times.
3. Saturn is twice as far away from the Sun as Jupiter is.
4. It is believed that Saturn's rings will one day disappear. They will either disperse (spread out) into space or get sucked into the planet by its pull of gravity. This will happen in about 50 million years.
5. Saturn's rings orbit the planet at different tilts. Sometimes, they can appear like 'ears' sticking out of the planet. At other times, they are flat on when seen from Earth and are hardly visible. This shows how thin they can be.
Uranus:
1. A day on Uranus is only slightly shorter than a day on Earth, at about 17 hours long.
2.A year on Uranus would last 84 years
3.Uranus has 15 moons (so far discovered) orbiting the planet. Ten of these were discovered in 1986 by the Voyager 2 mission.
4.Uranus has rings of ice and small rock particles which are so faint they appear as black as charcoal.
5.Uranus' pale blue colour is caused by the methane in its atmosphere which filters out red light.
Hope these were useful...
2007-02-08 01:36:13
·
answer #1
·
answered by tushar 2
·
0⤊
0⤋
Saturn:
1. A year on Saturn would take almost thirty Earth years.
2. Saturn is the second largest planet in the Solar System after Jupiter. It is so big that Earth could fit into it 755 times.
3. Saturn is twice as far away from the Sun as Jupiter is.
4. It is believed that Saturn's rings will one day disappear. They will either disperse (spread out) into space or get sucked into the planet by its pull of gravity. This will happen in about 50 million years.
5. Saturn's rings orbit the planet at different tilts. Sometimes, they can appear like 'ears' sticking out of the planet. At other times, they are flat on when seen from Earth and are hardly visible. This shows how thin they can be.
Uranus:
1. A day on Uranus is only slightly shorter than a day on Earth, at about 17 hours long.
2.A year on Uranus would last 84 years
3.Uranus has 15 moons (so far discovered) orbiting the planet. Ten of these were discovered in 1986 by the Voyager 2 mission.
4.Uranus has rings of ice and small rock particles which are so faint they appear as black as charcoal.
5.Uranus' pale blue colour is caused by the methane in its atmosphere which filters out red light.
Hope these were useful...
2007-02-06 10:12:52
·
answer #2
·
answered by Kavs 1
·
0⤊
0⤋
For Saturn;
1. It's a lightweight for a big planet, only about 68% the density of water (you could float the planet, if you had enough water to do it!).
2. Saturn is an oblate spheroid....it has a noticable 'bulge' at its equator due to both it's light density and its high rotation rate.
3. A day on Saturn is just 11 hours and 47 minutes long.
4. On Saturn, it 'rains' helium!
For Uranus;
1. Uranus is 'tilted' on its rotational axis at about 98 degrees, making it look like it 'rolls' in its orbit.
2. Because of its tilt, Uranus's magnetic tail is a corkscrew shape.
3. Uranus's magnetic field is also tilted, by more than 60 degrees from its rotational axis.
4. There may be diamonds at the core of Uranus, created from methane subjected to high pressure.
2007-02-06 11:17:06
·
answer #3
·
answered by swilliamrex 3
·
0⤊
0⤋
Saturn:
1) Saturn has a great white spot, like jupiter. However they don't spin for years, and usually slow down, and then another spot will pop up somewhere else on the planet.
2) Saturn is the least dense of all the planets. If you get an ocean big enough, Saturn would float
3) Scientists believe Saturn has no solid core-the middle is liquid.
4) Saturn has the northern and southern light, just like earth.
Uranus:
1) The correct pronounciation is YOOR-anus, not (pardon me) 'your anus' or 'urine us'.
2) Uranus is tipped on its side-its rings are vertical, not horizontal.
3) It was discovered by an english astronomer 200 years ago.
4)Light takes 3 hours to travel all the way to Uranus.
Hope I helped!
2007-02-06 10:16:36
·
answer #4
·
answered by Anonymous
·
0⤊
0⤋
SATURN
Until 1980, the structure of the rings of Saturn was explained exclusively as the action of gravitational forces. The Voyager spacecraft found radial features in the B ring, called spokes, which could not be explained in this manner, as their persistence and rotation around the rings were not consistent with orbital mechanics. The spokes appear dark against the lit side of the rings, and light when seen against the unlit side. It is assumed that they are connected to electromagnetic interactions, as they rotate almost synchronously with the magnetosphere of Saturn. However, the precise mechanism behind the spokes is still unknown.
Saturn has a large number of moons. The precise figure is uncertain as the orbiting chunks of ice in Saturn's rings are all technically moons, and it is difficult to draw a distinction between a large ring particle and a tiny moon. As of 2006, a total of 56 individual moons have been identified, along with 3 unconfirmed moons that could be small dusk clumps in the rings. Many of them quite small[citation needed]. Seven of the moons are massive enough to have collapsed into spheroids under their own gravitation. These are compared to Earth's moon in the table below. Saturn's most noteworthy moon is Titan, the only moon in the solar system to have a dense atmosphere.Saturn is probably best known for its planetary rings, which make it one of the most visually remarkable objects in the solar system.
URANUS
The icy planet Uranus is a smaller version of Jupiter and not the small rocky bodies like Earth. It have faint rings and a number of moons. Uranus takes some 84 years to orbit the sun. It rotates on its side and so half the time one pole is toward the sun and then the other making each of the four seasons last about 20 years. The faint bluish color of the planet is because the methane gas in the atmosphere absorbs red light and reflects blue light.
On March 13, 1781, an English astronomer named Friedrich W. Herschel discovered the planet but thought it might have been a comet. More observations and calculations by Herschel and others confirmed that it was indeed a planet. Since it was the first new planet found, Herschel had the honor of naming it so Herschel's Planet became Georgium Sidus (George's Star) after King George III of England. After the astronomer's death the planet was changed to Uranus as suggested by German astronomer Johann Bode. He thought that since Saturn was Jupiter's father then the next outward planet should be called Saturn's father, Uranus. Uranus is the only planet called by a Greek name rather than a Roman name, however, most of the moons of the various planets are named from Greek mythology. See below for Planet Myths and Lore.
New Moon for Uranus
Observations of Uranus taken in Chile in August, 2002, with the 4-meter Cerro Tololo Interamerican Observatory Blanco telescope have revealed a probable new moon for Uranus. The object is likely 7 to 19 kilometers across and would be the 16th moon orbiting Uranus. Five moons were known before the Voyager 2 Mission which found 10 more totaling 15. All of the planets' natural satellites seem to be about 50% water ice, 30% rock, and 20% carbon and nitrogen materials.
lbs kg
Gravity and You
Your weight on Earth is determined by your mass and Earth's mass. Would you weigh more or less on Uranus?
Planet Names
Why are the planets named for Roman gods? What is the story or myth about their names? Click image or here for Planet Myths and Lore.
Could the Earth and an asteroid collide?
Astronomers think that a huge object smashed into Uranus causing it to tip over. What are the chances of it happening to Earth? Find out at Near-Earth Objects.
Can't Find It?
Ask Cosmos, the Research Robot.
New! Click here to find out about "The Professor's Telescope", a new book by Chris Moreau, one of our advisors. Take an adventure with Eric to Saturn!
A portion of the proceeds will help support Kid's Cosmos.
Quick Facts about Uranus
Topic
Data
Diameter
51,118 km
Density
1.29 g/cm3
Mass
8.686 x 1025 kg
Volume
6.995 x 1013 km3
Temperature Range
-214° C to >-205° C
Atmosphere
Hydrogen, Helium, Methane
Winds
Up to 160 m/s
Moons
16
Average Distance from Sun
2,870,990,000 km
Orbital Period
84 Years, 3 Days, 15.66 Hours
Rotation
0 Days, 17.25 Hours
Tilt
97.86°
Rings
Yes
Composition
Hydrogen and Helium
Magnetic Field
Extends 15 times planet radius
2007-02-10 03:23:15
·
answer #5
·
answered by ankita n 1
·
0⤊
0⤋
Try here
2007-02-06 10:04:08
·
answer #6
·
answered by Gene 7
·
0⤊
0⤋