A VOYAGE ROUND SATURN,

ITS RINGS AND MOONS

Carolin Crawford

Gresham Professor of Astronomy

Huygens (1629-1695)

Galileo (1564-1642)

Cassini (1625-1712)

0.

1

0.01

1.

0

10.0

100 200 300

-200

0.001

-100

0

200

100

Temperature (K)

Pressure (bar)

Altitude (km

)

ammonia crystals

water

ammonium hydrosulphide

molecular Hydrogen

metallic Hydrogen

‘ice’

rocky core

Infrared Saturn

Barbosa Aguiar & Read

Oxford

ABC

Cassini division

Encke gap

ABC

Cassini division

Encke gap

Maxwell gapColumbo gap

Huygens gapEncke gap Keeler gap

D ring C ring B ring

A ring

Cassini

Division 140,220km

F ring

Prometheus

Prometheus

Phoebe

Epimetheus Janus

50 km

120 km

Pandora Telesto

Hyperion

Mimas

Titan

Mark Galick space-art.co.uk

Tethys

Rhea

Dione

Enceladus

12 km

water

vapour

ice

grains

rock

water

ice

dissolved salts and minerals

Iapetus

All images available from: saturn.jpl.nasa.gov

The Sounds of the Universe

Wednesday 23rd

Nov 1pm