Transcript power point presentation

The Exploration of Space
Saturn and its Moons
Space Words
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Planet
Moon
Sun
Star
Solar System
Orbit
There are nine planets
in our solar system.
The planets orbit
around the sun.
Galileo Galilei
Italian Astronomer
1564-1642
1610: Saturn rings sighted by Galileo Galilei
Although he saw the rings first, Galileo did not know
what they were. They appeared to him as ears or lobes
on either side of the planet.
1612: Galileo sees that rings seem to vanish
http://www.esa.int/SPECIALS/Cassini-Huygens/SEMSP6HHZTD_0.html
Christiaan Huygens
Dutch
Mathematician
and Astronomer
1629-1625
He created a new way to make a better telescope lens.
1655: He solved mystery of vanishing rings and
discovered Titan, Saturn's largest moon.
1656: He patented the first pendulum clock
http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Huygens.html
Giovanni Domenico
Cassini
French-Italian Astronomer
1625-1712
Cassini discovered Saturn's four other major moons:
Iapetus, Rhea, Tethys, and Dione, and discovered that
Saturn's rings are split largely into two parts by a
narrow gap -- known since as the "Cassini Division.“
http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Cassini.html
Cassini Mission to Saturn
Photo: ESA
Cassini spacecraft
and Huygens Probe
Photos: ESA
Titan
IVB/Centaur
getting ready for
takeoff
October 1997
Photo: ESA
The Cassini-Huygens voyage through the Solar System
Illustration: ESA
Io and Jupiter
Photo: ESA
Rhea
Photo: ESA
Dione and Saturn
Photo: ESA
Phoebe
Photo: ESA
Titan
Photo: ESA
Titan in ultraviolet and infrared wavelengths. It was taken by the Cassini-Huygens Imaging Science Subsystem on 26 October
2004, and is constructed from four images acquired through different colour filters. The image scale of this picture is 6.4
kilometres per pixel.
Huygen’s landing site
This picture was
taken during descent
to the landing site,
that indicates flow
around bright
'islands'. The areas
below and above the
bright islands may be
at different
elevations.
Photo: ESA
river channel and ridge area on Titan
Photo: ESA
14 January 2005, Titan
This picture gives an
indication of the actual color
of the surface. Initially thought
to be rocks or ice blocks, the
two rock-like objects just
below the middle of the image
are about 15 centimetres (left)
and 4 centimetres (centre)
across respectively, at a
distance of about 85
centimetres from Huygens.
Facts about Saturn
Orbital period (Saturnian year) 29.46 Earth
years
Saturnian day 10 hours 39 mins
Core temperature Approx. 12 000K (11 700°C)
Cloud-top temperature 150K (-139 °C)
Average density 0.7 g per cubic cm (0.7 times
that of water)
Atmosphere 96% hydrogen and 4% helium with
traces of water, methane and ammoni
Moons 31