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Entry-level PC with 19″ LCD (150W) - 50 minutes

Midrange PC with 19″ LCD (300W) - 16 minutes

Performance PC with 19″ LCD (500W) - 9 minutes

Our price: $149.95 Buy it now for $149.95 (List Price: $229.95)

Product Features:
Multiple view modes to find constellations and see their mythological figures
Built-in audio navigation tour
Set to any month, date and time for year-round navigation
Backlit LCD clock display
Glow in the dark compass

A Guided Tour of The Night Sky
Many centuries ago, people gazing at the sky night
after night began to notice figures or characters
formed by groups of stars. They gave them names and
created wonderful, interrelated stories about them.
This helped create a visual “map” of the night sky,
making it easier to locate stars.

But these characters are not really sitting out there in
space. They are only imaginary patterns created by the
juxtapositions of groups of stars as we view them from
Earth. If you could somehow see the night sky from
another part of the galaxy, the relative positions of the
stars would be completely different and you would be
able to discover totally new constellations.

The first constellations were created more than 3,000
years ago in the civilization of Mesopotamia. People
observed the stars to follow the changes in seasons and
the passage of time. To remember the arrangement of the
constellations, stories of the characters were created for
each one and were passed on generation-to-generation
by word of mouth. Much later, the Greeks added more
constellations, for a total of 88, and based their myths
on the ancient Mesopotamian legends. The great
astronomer and mathematician Claudius Ptolemy of
Hellenistic Egypt incorporated the constellations into
a series of maps of the celestial sphere. In 1930, the
International Astronomical Union officially classified
the 88 constellations into regions, based primarily on
Ptolemy’s …

Our price: $15.99 Buy it now for $15.99 (List Price: $39.99)