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Illuminated Star Map Globe
Earth by day, Space by night -
Two Globes in one!
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Our Constellation Globe shows the earth by
day, and space by night - two globes in one! the perfect
bedroom accessory for children who wish to learn about the
secrets of the night sky in a very intersting way. By night the illuminated star map shows 88 constellations. A light sensor automatically turns the globe to the illuminated night view when it gets dark. A fascinating tool for both geographers and astronomers alike.
This product makes an ideal gift to go alongside one of our children's
telescopes.
See Also: Celestial
Telescopes , Learning
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Star Constellations: Our modern constellation system comes to us from the ancient Greeks. The oldest description of the constellations as we know them comes from a poem, called Phaenomena, written about 270 B.C. by the Greek poet Aratus. However, it is clear from the poem that the constellations mentioned originated long before Aratus' time. Astronomers officially recognize 88 constellations covering the entire sky in the northern and southern hemispheres. Currently, 14 men and women, 9 birds, two insects, 19 land animals, 10 water creatures, two centaurs, one head of hair, a serpent, a dragon, a flying horse, a river and 29 inanimate objects are represented in the night sky (the total comes to more than 88 because some constellations include more than one creature).
Choosing a Telescope: A telescopes goes very well
alongside our Star Theatre 2 home planetarium, enabling
you to apply the theoretical knowledge gained in a very
practical way, enhancing the learning experience. There
are two main categories of telescope: Refractors and Reflectors.
Refractors, use two or more lenses to collect and focus
the light from an object to the eye of the observer, and
can trace their design back to the telescopes of Galileo’s
era. Reflectors, developed by Isaac Newton in the 17th century,
use mirrors to focus the light. As magnifications increase,
impurities in the glass of lenses can cause distortion (commonly
a “rainbow-like” halo around objects) requiring expensive
and difficult treatments and coatings to correct. Reflectors
telescopes avoid this problem, and are generally cheaper
to manufacture for a given sized aperture (the main lens
or mirror used to catch the incoming light). As a result,
most high-performance optical telescopes, including the
Hubble Space Telescope, are reflector designs. >>
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