An introduction to the technology of the hubble telescope

Once these had been established, the next hurdle for NASA was to obtain funding for the instrument, which would be far more costly than any Earth-based telescope.

Introduction to Telescopes

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Spitzer devoted much of his career to pushing for the development of a space telescope. There are radio telescopes, x-ray telescopes, infrared telescopes, gamma ray telescopes and ultraviolet telescopes. During the first few decades after refracting telescopes were invented, the race was on for the best telescopes.

We are deeply committed to encouraging people of all backgrounds to apply for these opportunities. Rather than CCDs these three instruments used photon -counting digicons as their detectors. Lockheed was commissioned to construct and integrate the spacecraft in which the telescope would be housed.

Optical telescopes typically have mirrors polished to an accuracy of about a tenth of the wavelength of visible lightbut the Space Telescope was to be used for observations from the visible through the ultraviolet shorter wavelengths and was specified to be diffraction limited to take full advantage of the space environment.

The thought was that the Earth lay inside a glass sphere or ball, and that the stars were simply holes in that ball through which light from the heavens could pass.

The An introduction to the technology of the hubble telescope a telescope is, the more detail it reveals in distant objects, and thus the more we can learn about them. It was built by the Goddard Space Flight Center and could achieve a spectral resolution of 90, Our world-class astronomical research center is based on the Johns Hopkins University Homewood campus in Baltimore, Maryland.

These plans emphasized the need for manned maintenance missions to the telescope to ensure such a costly program had a lengthy working life, and the concurrent development of plans for the reusable Space Shuttle indicated that the technology to allow this was soon to become available.

Because of the way the lenses bent the light, the images were always a little blurry. Therefore, its mirror needed to be polished to an accuracy of 10 nanometers 0. Within the shell, a graphite-epoxy frame keeps the working parts of the telescope firmly aligned. Inpublic spending cuts led to Congress deleting all funding for the telescope project.

First, the angular resolution the smallest separation at which objects can be clearly distinguished would be limited only by diffractionrather than by the turbulence in the atmosphere, which causes stars to twinkle, known to astronomers as seeing.

This design, with two hyperbolic mirrors, is known for good imaging performance over a wide field of view, with the disadvantage that the mirrors have shapes that are hard to fabricate and test. In response to a schedule described as "unsettled and changing daily", NASA postponed the launch date of the telescope until April Ina report by the US National Academy of Sciences recommended the development of a space telescope as part of the space programand in Spitzer was appointed as head of a committee given the task of defining scientific objectives for a large space telescope.

Since the invention of this amazing instrument, our knowledge of the heavens has grown by leaps and bounds. Eventually humans were able to launch telescopes into space that allowed even more detailed looks at objects in space, like the Hubble Space Telescope.

The distance between the lenses is called the focal length. Our experience has demonstrated that the broader the styles, backgrounds, and abilities of our staff—in other words, the more diverse our team is—the greater potential we have for success.

The mirror and optical systems of the telescope determine the final performance, and they were designed to exacting specifications. Space Exploration Introduction to Telescopes Humans have been studying the night sky since the beginning of time.

A well-known telescope was made by Johannes Hevelius. They followed the stars and the moon like clockwork. Congress questioned many aspects of the proposed budget for the telescope and forced cuts in the budget for the planning stages, which at the time consisted of very detailed studies of potential instruments and hardware for the telescope.

His telescope had a focal length of feet 48m. It was optimized for visible and ultraviolet light observations of variable stars and other astronomical objects varying in brightness.

This is called an interferometer. They would build large structures and monuments that would line up with the stars at certain times of the year. Learn more about each mission. An interferometer has the same power as would a telescope the size of the distance between the telescopes being used.

Mirror polishing continued until May Newton found that this made the images of space much clearer to the viewer. It was followed by OAO-2which carried out ultraviolet observations of stars and galaxies from its launch in untilwell beyond its original planned lifetime of one year.

Since that time, humans have raced to build bigger and better telescopes.


This type of telescope had a mirror inside that would reflect the image to a focus point. Many astronomers met congressmen and senators in person, and large scale letter-writing campaigns were organized.An Introduction to the Technology of the Hubble Telescope PAGES 2.

WORDS View Full Essay. More essays like this: the hubble telescope, the technology of hubble, faint object camera, the hubble space telescope. Not sure what I'd do without @Kibin - Alfredo Alvarez, student @ Miami University.

HubbleSite works better when you install the latest Flash Player for your browser. Quit. May 29,  · The Hubble Space Telescope, or HST, is a unique tool for space exploration and for education. For more than 18 years, Hubble has peered into the universe, inspiring students of all ages to wonder — to ponder new science questions and to seek answers about the universe.

The Hubble Space Telescope (HST) is a space telescope that was launched into low Earth orbit in and remains in operation.

Further concepts for advanced 21st-century space telescopes include the Advanced Technology Large-Aperture Space Telescope, a conceptualized 8 to meters ( to inches). May 29,  · Introduction to Hubble. April 14, [image] The Hubble Space Telescope, launched in Aprilis poised for many more years of trailblazing science ranging from Earth's solar system to the edge of the observable universe.

The telescope is fulfilling the hopes astronomers have long held. They have wanted a large, optically. This web site describes the Hubble Space Telescope and its operations, images, and results. Hubble Technology - Summary National Aeronautics and Space Administration.

An introduction to the technology of the hubble telescope
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