 Space Ref (press release) |
Radio Telescope Reveals Secrets of Massive Black Hole
Space Ref (press release) - In late 2005 and early 2006, the astronomers watched BL Lac with an international collection of telescopes as a knot of material was ejected outward through … |
Tags: celestron telescope, discovery telescopes, bushnell telescope
 Science Centric |
NASA to Build Giant Telescopes Made of Moon…on the Moon?
Gizmodo - NASA researchers claim they've developed a way to create a concrete-like substance, necessary for the production of space telescopes, out of Moon dust. … Giant Telescope Mirrors For The Moon Could Be Made With Carbon … Moon Dust Could Be Used to Build Lunar Lodgings |
Tags: celestron telescope, hubble space telescope, celestron telescopes
Roundest objects in the world created
New Scientist (subscription), UK - The unusual balls, discussed last week at the SPIE Astronomical Telescopes and Instrumentation conference in France, were created as an answer to the … |
Tags: tasco telescopes, unitron telescope, dobsonian telescope
Radio Telescopes Reveal Unseen Galactic Cannibalism
Science Daily (press release) - ScienceDaily (June 23, 2008) — Radio-telescope images have revealed previously-unseen galactic cannibalism — a triggering event that leads to feeding … |
Tags: sky telescope, orion telescopes, telescopes
 Springfield State Journal Register |
New point of view for Chick Lanphie'sr telescope
Springfield State Journal Register, IL - Robert Lanphier said many of the company specifications for the older telescopes were lost in a flood, but it is a powerful instrument that he says he’s … |
DOBSONIAN TELESCOPES CREATED A NEW LIFE FOR ASTRONOMY
The sky is filled with many wondrous objects, which have fascinated man since ancient history. Galileo invented the telescope in 1609 and changed life on the planet.
With the invention of his device, man was able to study, view and calculate the movements of the heavens as never before. Since then their have been many makers of telescopes but the Dobsonian Telescope design brought astronomy to the masses like never before.
What Is Astronomy
Astronomy is the science and study of the objects in and outside the earth’s atmosphere. These objects include those in the solar system such as the moon, planets, sun and the like. Astronomers look at stars, galaxies, nebulas, and the radiation from black holes.
Some of these objects such as the sun, stars, and moon you can see with the naked eyes but the invention of the telescope brought them much closer. The Dobsonian telescope designs allowed millions of people to become amateur astronomers.
Who Is John Dobson
John Dobson is an acclaimed amateur astronomer who was born in 1915. He used a basic maneuvering mechanics that were used on historical canons to create a telescope on an apparatus that was easy to assemble, take out in public and move around. The Dobsonian telescope design led to a proliferation of telescope designs and sealed his name in amateur astronomy circles.
The Dobsonian Telescope Design
The Dobsonian telescopes endeavored to make large aperture telescopes portable and reasonably priced especially for the amateur astronomer. It is good for deep sky observation and enables the viewer to see star clusters and galaxies.
Amateur astronomers can even make this design using materials they gather themselves though there are many companies, which sell this design including Obsession Telescope among others.
The Dobsonian telescope includes thin mirrors. Dobson used mirrors that came from ship porthole glass. Dobsonian telescopes feature a hard telescope tubes. Originally, John Dobson used tubes used in construction to make his telescopes.
This was considerably cheaper than tubes specifically manufactured for telescopes. There was the square mirror box for the mirror housing. The Dobsonian telescopes use an alt-azimuth type of design to rotate the telescope. Dobsonian also was the first to introduce the open steel frame, self-cooling mirror cell.
Makers Of Dobsonian Telescope Designs
Obsession Telescopes are quality makers of several models of Dobsonian telescopes. This company manufactures the design the many amateur astronomers crave for their star parties and viewing.
Tags: spitzer space telescope, modern telescopes, amateur telescope making
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