Cassini Division
A gap between the broad A and B rings around , first noticed by . Measurement of a finite , however, show that the gap is not completely empty.
, , , ...
Saturn's Cassini Division
Saturn's ring system has gaps throughout it, though only a few of these gaps were known before space probes were able to visit the planet.
Cassini Division A relatively empty gap in Saturn's ring system between the A and B rings, discovered in 1675 by Giovanni Cassini. It is now known to contain a number of thin ringlets.
CASSINI DIVISION
The Cassini Division is the main, dark division between largest rings (the A and B rings). This gap is 2,920 miles (4,700 km) wide and is 73,010 miles (117,500 km) from the center of Saturn. It was discovered by G.D. Cassini in 1675.
The Cassini Division is not an empty region but rather shows several substantial well-defined ringlets.
SATURN'S F RING
Kinks and braids of this tightly-constrained ring are visible along with the outer edge of the A Ring.
The Cassini Division has been found to contain thinner, dirtier rings than the icier A ring that lies outside of it.
Even in the Cassini Division, the spacecraft registered thousands of impacts with smaller pieces of debris but emerged unscathed. The close flyby allowed astronomers to obtain images of portions of the ring system in unprecedented detail.
Three bright ring features are seen: the F Ring, the Cassini Division, and the C Ring (moving from the outer rings to the inner). The low concentration of material in these rings allows light from the Sun to shine through them.
Bigger gaps in the rings (such as the Cassini division) are the result of gravitational resonances with the moons of Saturn.
Looking at the A Ring from the inside out, the Cassini Division is in faint red, left, followed by the entire A ring. The Cassini Division, left, contains thinner, dirtier rings than the turquoise A ring, indicating a more icy composition.
The Huygens Gap separates the B Ring from the Cassini Division.
Cassini Division
The Cassini Division is a 4,800 km (2,980 mile) region between the A Ring and B Ring. It was discovered in 1675 by Giovanni Cassini.
This is called the Cassini division, after its discoverer. The group of rings on the outside of this gap is called the A ring. The group on the inside of the Cassini division is known (not surprisingly) as the B ring.
While the largest gaps in the rings, such as the Cassini Division and Encke Division, can be seen from Earth, the Voyager spacecrafts discovered the rings to have an intricate structure of thousands of thin gaps and ringlets.
It is separated from the outer major ring, the A ring, by the Cassini division. The Cassini division (1.95 to 2.02 Saturn radii) is not devoid of particles but exhibits complicated variations in , with an average value of 0.12.
Larger gaps in rings (such as Saturn's Cassini division) result from gravitational resonances with the larger moons of Saturn. Resonance occurs when one object has an orbital period that is a small-integer fraction of another body's orbital period, e.
The bright blue swath near Mimas (398 kilometers, or 247 miles across) is created by sunlight passing through the Cassini division (4,800 kilometers, or 2,980 miles wide).
One early science result intriguing scientists concerns Saturn's Cassini Division, the large gap between the A and B rings.
They are separated by the Cassini division, a broad gap that may seem narrow, but is about as wide as North America. The division looks as black as the sky, but does contain some particles. The gap is caused by the gravity of Saturn's moon Mimas.
The two gaps in the rings that are visible from the Earth are the Cassini division and the Encke division. The Cassini division (between the A and B rings) is easily seen, but you would need a very powerful telescope to see the Encke division.
The gap between the A and B rings is known as the Cassini division. The much fainter gap in the outer part of the A ring is known as the Encke Division (but this is somewhat of a misnomer since it was very likely never seen by Encke).
Measured Mars and Jupiter rotation periods, first scientific records of zodiacal light, discovered the Cassini division, and investigated atmospheric refraction.
10, HIPPARCHUS of Nicaea(190 - 120 BC) ...
The A, B, and C rings dissolved into more than 1,000 narrow ringlets, 100 of which are in the Cassini division.
Cassini discovers that Saturn's rings are split into two parts, so that today the gap is called the "Cassini Division".
1687 A.D.
England ...
Ice chunks (and some rock) No No Hydrogen gas A flattened sphere 18 named moons and about a dozen that are unnamed About 6 miles (or 1.5 km) thick Galileo The Cassini division Ganymede, which orbits Jupiter ...
The French-Italian astronomer Jean Dominique Cassini first observed what appeared to be a division between the rings now known as the Cassini division in 1676.
Daniel Kirkwood (1814-1895) was an American astronomer who discovered the radial gaps in the asteroid belt in 1866 (now known as the Kirkwood gaps). Kirkwood also hypothesized that Saturn's moon Enceladus creates the Cassini division with its ...
In closer look, there are many gaps between the ringlets, the most obvious one is the Cassini division.
Cassini -- Gian Domenico Cassini (1625-1712) Astronomer born in Italy, later a naturalized French citizen. Discovered four of Saturn's satellites, observed a dark division in Saturn's ring (the Cassini Division).
Where these orbits "resonate" with the motion of a moon, strong interactions occur, creating empty gaps. Most famous is the wide Cassini division, discovered in 1675 by Giovanni Domenico Cassini, ...
 See also: Saturn, Rings, Planet, Earth, Orbit
|
