Description of Telescopes
Telescopes are one of the main ways that astronomers explore the universe. They come in all shapes and sizes depending on their function. Generally, bigger telescopes are better if you want to see faint, far-away things, because they can gather more light and have better resolution. Resolution is the ability of a telescope to discern objects close together; for example, the ability to clearly separate two stars that are very close together or the ability to see smaller craters on the Moon.The gamma rays are the most powerful type of radiation, discovered at the beginning of the century as radioactive substance emissions. Like the light, the gamma rays are constituted by photons, "particles of light", with the difference that a gamma photon has more than a million, even thousands of million of times more energy that a photon of visible light. By their high energy these photons penetrate lead plates, and to generate them in the Earth we required subatomic particle accelerators: once accelerated, these particles can produce gamma rays when hitting other particles that serve as target. In analogous form, the celestial gamma ray sources must accelerate subatomic particles and make them affec
Based on the investigation that I made, I think that the best telescope option that I can buy is the Newtonian, because is the cheapest of these four, is easy to operate, and offers a clear image of the objects that I will look. I think that for a person like me, I will not need a catadioptric telescope. I know that the Newtonian needs more maintenance and is more fragile that others, but I think I'm not going to use the telescope that much, and is not reasonable for me to spend a lot a money on a high quality telescope. Schmidt-Newtonian optics yield pinpoint stellar images over extremely wide fields, with one-half the coma of paraboloids of the same focal ratios. They yield an actual field in excess of 1.3°, for brilliant, rich-field imaging of nebulae, galaxies, and star clusters, and high-power lunar and planetary images reveal subtle detail often lost in telescopes of lesser optical resolution. Ultraviolet telescopes have to be placed even higher than infrared telescopes. The Earth's stratospheric ozone layer, located 20 to 40 kilometers above the Earth's surface, blocks out UV wavelengths shorter than 300 nanometers. By the 1940s, scientists were launching rockets with rudimentary UV detectors onboard. t a target. An alternative is that the accelerated particles emit gamma rays in the presence of an electromagnetic field. In any case, the gamma radiation emission obeys to different processes that are require to emit visible light.
Some common words found in the essay are:
Infrared Infrared, Schmidt-Cassegrain Newtonians, Gamma Rays, X-Rays Studies, Visible Light, Ultraviolet Ultraviolet, , gamma rays, degrees centigrade, primary mirror, lunar planetary, optical telescopes, secondary mirror, visible light, deep sky, radio telescope, gas clouds, deep sky objects, planetary binary star, faint deep sky, binary star observing, stars 3000 degrees,
Approximate Word count = 1576
Approximate Pages = 6 (250 words per page double spaced)
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