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6 Cards in this Set

  • Front
  • Back

Describe the Saturn missions.

1. Pioneer 11

2. Voyagers 1 and 2

3. Cassini-Huygens was the first spacecraft to orbit Saturn. It was the joint project of NASA and the European Space Agency. Its only fuel is a small amount of plutonium, otherwise it depends only on gravity.

4. New Horizons

Saturn radiates _ times as much energy as it receives from _.

1.8 and the Sun. So it must be hot inside.

Describe Saturn's atmosphere.

Clouds are organized into belts which are regions of sinking gas and zones which are regions of rising gas. Main difference from Jupiter is the winds are faster.

Describe Saturn's magnetic field.

Saturn is the only planet in the Solar System to have a perfectly symmetrical magnetic field.

Describe Saturn's rings.

While Saturn was discovered by Galileo, its rings were discovered by Huygens (as was Saturn's satellite, Titan). The rings can be divided into groups based on their distance from the planet. There are seven groups (A,B,C,D,E,F,G). There is a division between groups A and B called the Cassini Division and is caused by gravitational interruptions from Saturn's satellite, Mimas. The rings ride exactly above Saturn's equator and are very bright. Saturn's B ring has dark radial features called spokes. The rings are composed of water ice.

Describe Saturn's satellites.

1. Titan contains a thick atmosphere composed of mainly nitrogen (like Earth). Contains cryovolcanoes that spew cold water and ice.

2. Mimas

3. Lapetus

4. Enceladus

-Saturn also has what are called Shepherd satellites that are located in between the rings and act to stabilize them. i.e. Prometheus and Pandora which are shepherd satellites that stabilize the F ring.