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Saturn's Ring System
The rings of Saturn have puzzled astronomers ever since they were discovered by Galileo in 1610, during the first telescopic observations of the night sky. The puzzles have only increased since Voyagers 1 and 2 imaged the ring system extensively in 1980 and 1981.


Saturn, the ringed planet
Saturn, the large gas giant beyond Jupiter and sixth planet from the Sun, is one of the five (Mercury, Venus, Mars and Jupiter) planets visible from Earth using only the naked-eye.

Saturn's Atmosphere
The sixth planet from the Sun in the solar system. Saturn orbits the Sun at an average distance of 9.5 AU. The planet has a mass 95.2 times the mass of Earth and a radius 9.45 times the radius of Earth. Saturn is a gas planet and has no solid surface.

SATURN THE RINGED PLANET
Way out beyond Jupiter is the second of the gas giants, Saturn.
When Galileo focused his telescope on Saturn he was puzzled to find that it had an irregular shape.

Saturn's Rings
By Brian Ventrudo
More than a few stargazers got their start with a first look at Saturn through a telescope. The planet is simply a beautiful object.

Saturn eclipses an icy moon
The mighty planet Saturn is circled by a fleet of moons, each as different from the other as individual people. And as weird and alien as it seems, this Saturnian system of planet and moons have some similarities to our own Earth and Moon.

Saturn
Saturn as seen by Hubble ©NASA and The Hubble Heritage Team (STScI/AURA) Saturn is probably the best known and most beautiful planet in the solar system.

Saturn
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Here is a planet that everyone knows something about. Nearly anyone who has spent some time in school can recognize its because of its rings, but what else do you know about the Saturnian world? Do you know for instance what those famous rings are made of?

Saturn's Giant Sponge
"Saturn's A-ring and Enceladus are separated by 100,000 kilometers (62,000 miles), yet there's a physical connection between the two," says Dr. William Farrell of NASA's Goddard Space Flight Center in Greenbelt, Md.

Saturn's New Moons
Many new Saturnian moons are now confirmed; the pre-2000 reports are probably in error. More recent discoveries can be seen here. And more discoveries are expected from Cassini, now in orbit around Saturn.
Cassini ...

Saturn and the Moon Share Predawn Close Encounter on Friday
Saturn will shine near the moon in the predawn sky of Friday, Jan. 16, 2015. This sky map shows the location of Saturn and the moon as they will appear at 5 a.m. local time.
Credit: Starry Night software
View full size image ...

Saturns Smaller Moons
Last week, we looked at the largest gem in Saturns vast collection satellite treasures, Titan. This week, we will look at other, smaller in the Saturnian system.

SATURN'S MOONS
Saturn has many moons (62 discovered as of 2012). The moons are: Titan, Rhea, Iapetus, Dione, Tethys, Enceladus, Mimas, Hyperion; Prometheus, Pandora (shepherd moons), Phoebe, Janus, Epimetheus, Helene, Telesto, Calypso, Atlas, Pan, Ymir, Paaliaq, Siarnaq, Tarvos, Kiviuq, Ijiraq, ...

Saturn's Rings
Return to the StarChild Main Page
Go to Imagine the Universe! (A site for ages 14 and up.) ...

Saturn's hexagon emerges from winter darkness
DR EMILY BALDWIN
ASTRONOMY NOW
Posted: December 10, 2009 ...

Saturn's North Pole Cloud Pattern Hexagon
A persisting hexagonal wave pattern around the north polar vortex in the atmosphere at about 78°N was first noted in the Voyager images.

Saturn (astronomy) at HighBeam Research
Saturn (astronomy) on Wikipedia
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Pictures from Google Image Search ...

Do Saturn's moons cast observable shadows on Saturn?
I've seen the tiny black shadows cast by Jupiter's moons. Do Saturn's moons cast observable shadows on that planet?

Saturn is the _______________________ planet from the Sun in our Solar System. It is the second-largest _______________________ in our Solar System (Jupiter is the largest) and is made mostly of _______________________ and helium gas (it is a _______________________ planet).

Saturn
A highly oblate whose atmosphere is hydrogen and helium. The predominant condensable aerosols are methane, ammonia, hydrogen sulfide, and water. In order of decreasing condensation height (as well as saturation vapor pressure), the condensable gases are CH4, NH3, NH4SH NH3H2S, and H2O.

Saturn's Moons
Overview
Saturn has 31 known moons. Of them, Titan is the largest, and is the second-largest in our solar system (Jupiter's Ganymede is largest). The other satellites have icy surfaces and many craters. Mimas has one crater that spans one quarter of it's diameter.

Saturn means:
Saturn was the god of agriculture, he was called Cronus by the Greeks. He is the son of Uranus, and father of Jupiter. Saturn over threw his father to become king of the gods, but was then over thrown himself by his son Jupiter.

Saturn transits - or passes in front of - the Crab Nebula on the evening of January 4. Afterwards, Saturn slowly drifts westward (left to right) through Taurus, staying within vicinity of the Crab Nebula throughout the month.

Saturn advertises itself as "a different kind of car company" although it is actually a division of General Motors. Saturn prides itself on dealerships that feature the "Saturn Difference," which means, among other things, no-haggle pricing.

Saturn has 34 named moons, among them Titan, about the size of Jupiter's Ganymede, both larger than the planet Mercury.

Saturn's renowned rings appear to be mostly made of small particles of water ice, some of which may be coating rocky particles.

7. Saturn is the only planet in our solar system that is less dense that water. This means that it would float if there was a body of water large enough to hold it.
8. A day on Saturn is equal to 10 hours and 14 minutes in Earth days.
9. Diameter of Saturn is 119,871 km (74,500 miles).

Saturn
Wikipedia, the free encyclopedia - Cite This Source
Saturn is the sixth planet from the Sun and the second largest planet in the Solar System, after Jupiter.

Saturn's other Moons
Saturn's other moons have icy surfaces that are very cold so that ice is as rigid as rock and craters form from meteor impacts. The mean densities of these moons are 1.0 to 1.5 g/cc, implying that they are probably mostly ice, though they may have some rocky consituents.

Planet Saturn Moons: Mundilfari
Mundilfari is a moon of the planet Saturn.
For a listing of other moons, see Moons of the planets.

Saturn has 61 moons with confirmed orbits, 52 of which have names, and most of which are quite small. There are also hundreds of known "moonlets" embedded within Saturn's rings.

Saturn's Moons
and two of its moons, and , were photographed by Voyager 1 at a distance of 13 million km (8 million mi). The shadows of Saturn's three bright rings are cast onto the cloud tops.

Saturn, as seen from its moon Iapetus.
Returning to our tour of the solar system, let's voyage away from the largest planet to the second largest, Saturn. Once again, we'll break up our visit because there's lots to talk about. This week, we talk about Saturn and its famous rings.

Saturn is the sixth planet from the sun. Image Credit: NASA
Saturn is a funny-looking planet. True, it's not the only planet with rings. Jupiter, Uranus and Neptune have rings, too. But Saturn's rings are the biggest and brightest.

Saturn Controls a Giant Planetary System
THE LATEST CASSINI NEWS FROM SATURN
IMPORTANT CASSINI FINDINGS ABOUT MOONS AND RINGS
MOONS RINGS MOONS OF THE SOLAR SYSTEM ...

Saturn
Galactography Regions of Space Inner Sphere
Galactography Other Major Polities, Empires, and Meta-Empires Solar Organisation
Galactography Systems and Worlds Systems & Worlds S - T ...

Saturn also has a slightly slower rotation rate than Jupiter, but it is still going fast and has differential rotation just like Jupiter, so there are some spots and storms, though they aren't as easy to see.

*Saturn is one of the 5 planets visible with the naked eye, but for astronomy purposes a good set of binoculars of 25x is the minimum requirement for viewing Saturn and its yellow colour.

Why are Saturn's rings flat? Why isn't the debris dispersed equally around the whole planet?

A view of Saturn as it is approached by the Cassini spacecraft.
Some basic facts about Saturn
Planet ...

Venus and Saturn will pair up in the western sky on the evening of June 30th.
The planets will pass 41' apart around 9 P.M. EDT (01:00 UT, July 1st).
Venus will shine at magnitude -4.4; Saturn will glow at magnitude +0.6.
The Venus-Saturn conjunction takes place 42.6° from the Sun.

Saturn has intrigued man for centuries, especially since the invention of the telescope when the Saturn's grand rings were observed for the first time. Much like Jupiter, Saturn has many dozens of moons, one of which, Enceladus, could provide a foot-hold for life to form.

Saturn Nebula (NGC7009) in Aquarius
(RA 21h 04.2m , Dec. -11°22', 8.3 mag., >25" in diameter) ...

Saturn
Saturn is the sixth planet and the second jovian giant. Saturn is 120,000 km (75,000 miles) across and about 95 times Earth's mass, one day lasts 10 hours 15 minutes. The atmospheres composition is 94 percent Hydrogen, and the rest is helium with traces of ammonia, methane,and other gases.

Saturn Storm
Such spots are relatively rare on Saturn. The previous one visible from Earth appeared in 1933, but it was much smaller than the 1990 system and much shorter lived, lasting for only a few weeks. Another storm system is visible in Figure 12.2, taken in 1994.

Saturn: Saturn is the second largest planet in our solar system, the sixth planet from the Sun and features an impressive system of rings.

Saturn right. Taken with D = 63 mm (less than 2.5 inches!!!), F = 840 mm, digital point-and-shoot camera (but a decent one) attached after the eyepiece. Effective focal length F ~ 2,000 mm, exposure time 1/13 sec, ISO 100.

Saturn
Saturn is the sixth planet from the Sun. It is the second-largest planet in our solar system. It is best known for its distinctive rings, which are made of ice chunks that range in size from the size of a fingernail to the size of a car.

Saturn is the sixth planet from the Sun and the second largest planet in the Solar System, after Jupiter. Saturn, along with Jupiter, Uranus and Neptune, is classified as a gas giant....
(e.g. Europa
Europa (moon) ...

Saturn, the farthest planet easily visible to the unaided eye, is known for its extensive, complex system of rings, which are very impressive even in a small telescope. Using a small telescope one can also discern the planet's oblateness, or flattening at the poles.

Saturns Rings

The rings of Saturn are made up of icy particles ranging in size from micrometres to metres. Almost entirely water ice, the particles are contaminated with some dust and other chemicals.

Saturn Nebula (NGC 7009, Caldwell 55)
Saturn Nebula, photo: Spacetelescope.org, NASA/ESA
The Saturn Nebula was discovered by Sir William Herschel in the late 18th century. It got its name from the English astronomer and telescope maker William Parsons, 3rd Earl of Rosse, in the 19th century.

SATURN'S RINGS
The spectacular aggregation of countless billions of small rocky and icy particles that surround and orbit Saturn in its equatorial plane. Three main rings can be seen even in small telescopes from Earth.

Saturn (1/4) and Neptune (3/4):
Fold the tape back in half, then in half again. Fractions: 1/4th and 3/4th. Unfold and lay flat. What planets do you think are at these points? Draw a circle a little bigger than a quarter on the 1/4th mark (closer to the Sun) and label it Saturn.

Sub-Saturn Planet Candidates to HD 16141 and HD 46375.
Dec. 20, 2010 MARCY G., BUTLER P. & VOGT S.
ApJ. Letters, 536, L43
paper ...

Saturn's largest satellite is the mysterious world called Titan. It has slightly greater diameter, density, and mass than Callisto. It is probably half rock, half ice. What is special about Titan is that it has a thick atmosphere with a surface air pressure about 1.5 times thicker than the Earth's.

SATURN: Like Jupiter, Saturn also radiates about twice as much radiation in the infrared as it received from the Sun. ISO was recently used to study the concentrations of heavy and ordinary hydrogen in the atmosphere of Saturn.

Saturn with its fantastic rings is about 1 light hour from the Sun. These are "false color" image from Voyager. Saturn's large satellite Titan is massive enough to have its own atmosphere, though probably too cold to support life.

Saturn
The sixth planet in the solar system, noted for its obvious ring structure. Saturn is almost ten times the Earth's distance from the Sun. The planet completes a circuit around the Sun in about 30 Earth years. Saturn is the second largest and the least dense planet in our solar system.

Saturn - Variable projection.
Pythagoras - Prime focus
Pythagoras - Variable projection
Images with 10 inch f/10 LX200 ...

Saturn has a similar visible appearance to Jupiter, with alternating light and dark cloud bands, known as zones and belts, respectively. Saturn's clouds are more subtle and yellowish and, therefore, less colourful than those found on Jupiter. Contrast is also muted by an overlying haze layer.

Saturn's largest moon Titan was seen as a strange world with its dense atmosphere and variety of hydrocarbons that slowly fall upon seas of ethane and methane.

Saturn's most well known feature is its rings. These rings are made up of dust and rocks covered with ice. That is the same type of material found in comets. Scientists think the rings could have been formed from a comet striking one of Saturn's moons.

In Saturn's rings, the gap between rings B and C. [H76]
Lyrae
see Vega [H76]
Lyrae Stars ...

The Saturn Handbook, Julius Benton, Association of Lunar and Planetary Observers (A.L.P.O.).
The Solar System, Volume III: Planets and Satellites, Audouin Dollfus (Observatoire de Paris), Chapter 15 - Visual and Photographic Studies of Planets at the Pic du Midi, University of Chicago, 1961.

KNOTS
Saturn's outermost ring, the subdivided "F" ring, has many visible knots or clumps of matter. These knots may be clumps of particulate ring material or tiny orbiting moons of Saturn.
...

Jupiter, Saturn, Uranus, and Neptune.
giant star - (n.)
A type of star brighter than main sequence stars of the same spectral type.

May 10 - Saturn at Opposition. The ringed planet will be at its closest approach to Earth and its face will be fully illuminated by the Sun. This is the best time to view and photograph Saturn and its moons.

Cerca de Saturno
El Voyager 1 de los EE.UU, envía a Tierra las primeras imágenes de Saturno y sus anillos.
1986 A.C.

NGC 7009, "Saturn Nebula" is a planetary nebula quite spectacular in large instruments. It has 'rays' which extend from both sides of the main disc. The nebula is 1º west of nu Aqr. Burnham (p. 190) has a location chart.

Movie of a Saturn Apollo Launch: (.mov) or (.avi). (587K)
The Manned Flights of Apollo
Apollo 7 Saturn 1B October 11-12, 1968 Walter M. Schirra, Jr. Donn F. Eisele R. Walter Cunningham ...

JUPITER and SATURN: Jupiter radiates about 1.6 times as much heat, in the form of infrared energy, as it receives from the Sun. This indicates that Jupiter has an internal source of energy - probably heat created by Jupiter's collapse when it was formed.

Saturn (NASA SP-7, 1965) See planet, table. Saturn 5 launch vehicles (From Stargazers to Starships Glossary - GSFC) The biggest rocket built to date, weighing 2700 tons fully loaded. It was used to launch NASA's Moon mission and the Skylab space station.

A 5000-km gap in Saturn's ring system observable through small telescopes. G.D. Cassini discovered this dark gap in Saturn's rings in 1675.
celestial equator ...

"Appendages" on Saturn
Galileo noted two appendages from the sides of Saturn. These disappeared then later reappeared. It was not until 1656 that the Dutch scientist, Christiaan Huygens correctly described them as rings.
Stars in the Milky Way ...

Me: So, did you see Saturn last night?
Him: No, it was too cold out to go observing.
Me: Oh.
Him: But my 18" dob blows your puny little 2.7" refractor out of the water, you teeny dweeb! ...

The UV radiation produced in the upper atmosphere of Jupiter, Saturn, Uranus by high-energy particles in the planet's magnetosphere.
Electromagnetic Radiation ...

1980 - Saturn - Success - Voyager 1 sends back images of Saturn and its system
1980 - Success - Launch of the Solar Maximum Mission satellite
1981 - Venus - Success - Venera 13 launched, it returned the first colour pictures of the surface of Venus ...

Cassini division 5000-kilometer gap between the outer and middle rings of Saturn. celestial equator great circle that represents the projection of Earth's equator onto the sky (celestial sphere).

NGC 7009 displays a pair of jug-handle-like "ansae" that give it the name "The Saturn Nebula." On the left is a drawing made early in the twentieth century from a series of primitive photographs, the gaseous nebula perhaps appearing as its discoverer William Herschel may have seen it.

For it resemblance with the planet Saturn it is called Saturn Nebula: in larger scopes it appears as a bright inner ring surrounded by a patchy disk. Small scopes show a misty greenish disk of 8th mag.

Cassini, Giovanni Domenico 1625-1712 (a.k.a. Jean Dominique) Italian-born French astronomer and first director of the Royal Observatory in Paris; discoverer of four of Saturn's moons (Tethys, Dione, Rhea and Iapetus) and the major gap in its rings. (13k jpg) catena chain of craters.

The box shows the picture of happy people looking through the telescope and then a few colorful Hubble quality shots of some planets (Jupiter, Saturn, Mars) or of Andromeda galaxy.

The largest, Jupiter, is 318 time Earth's mass, while Saturn, Uranus, and Neptune are respectively 95, 15, and 17 times Earth's mass. In terms circumference, these four planets are 11.2, 9.5, 4.0, and 3.9 times Earth's circumference.

Cassini's division the major division in Saturn's rings, between the A- and B-rings celestial equator the Earth's equator projected onto the sky celestial object an object in space which appears in Earth's sky celestial poles the Earth's north and south poles projected onto the sky ...

Perturbations from other planets (primarily Saturn) cause the Trojans to oscillate around L4 and L5 by 15-20° and inclinations up to 40° to the orbital plane. These oscillations generally take 150-200 years to complete.

The RA of the "giant planets" (Jupiter, Saturn, Uranus and Neptune) changes very, very slowly. Therefore the Earth's sidereal period becomes a dominant factor. The further away the planet, the closer its synodic period approaches the Earth's sidereal period.

But five unusually bright stars - Mercury, Venus, Mars, Jupiter and Saturn behaved differently. Within a single night they would remain in a fixed position relative to the other stars.

I love it when Saturn is up during a star party. I love being the guy who shows someone Saturn through a telescope for the first time, their reactions are always the same: "WOW! LOOK AT THAT! MAN, THAT'S AWESOME! OH MAN THAT'S COOL! ...

This large size difference is responsible for many other differences between the two groups, for instance Jupiter and Saturn both have sufficiently high internal pressures to 'squeeze' large quantities of Hydrogen into a metallic state in their cores, ...

This model generally led to reasonable predictions of planetary positions, but it has several unexplained coincidences: the centers of the epicycles for Mercury and Venus always line up with the position of the Sun, and the lines from the epicycle center to the planet for Mars, Jupiter and Saturn ...

For example, Saturn has a specify gravity, or density, of 0.71. Therefore an equal volume of water would weigh more than the planet - if you had a big enough bowl of water, Saturn would float in it! On the other hand, Earth has a specific gravity of 5.5, thus Earth would weigh 5.

After the Sun, the next largest bodies in the solar system are the so-called ``gas giant'' planets, Jupiter, Saturn, Uranus and Neptune. Of these Jupiter is the largest and most massive.

Originally a description of the appearance of Saturn's rings before they were recognised as being a ring system.

While some of these comets come from parts of the solar system where Jupiter and Saturn orbit, many comets of this type are thought to originate in a region of the solar system known as the Kuiper belt.

Ptolemy believed the planets and Sun to orbit the Earth in the order Mercury, Venus, Sun, Mars, Jupiter, Saturn.

NGC 7009, or the Saturn Nebula, is one of the brightest planetary nebulae, named after the planet Saturn because it is similar in shape. NGC 7293, or the Helix Nebula, is the closest planetary nebula to Earth, only 400 light-years away.

Cassini
A spacecraft en route to Saturn, scheduled to arrive in 2004. Named after the astronomer who discovered the dark gap between the two main rings of Saturn.

celestial body
Any object beyond the Earth and visible in the sky.

Within the Solar System, the average temperature on Pluto is around -235°C, on Neptune around -220°C, on Uranus -210°C, on Saturn -184°C and on Jupiter -153°C. The temperature on Mars varies between about -87°C and -5°C, with an average of around -46°C.

See also: See also: What is the meaning of Astro, Planet, Astronomy, Earth, Astronomer?

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