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The Very Large Array (VLA) telescopes are arranged far apart to enhance their ability to capture high-resolution images of celestial objects. By using an interferometric technique, the separation between the dishes allows them to simulate a much larger telescope, effectively increasing their angular resolution. This configuration enables astronomers to detect finer details in radio emissions from distant galaxies, stars, and other astronomical phenomena. Additionally, varying the distance between the antennas can provide a range of observational capabilities across different spatial frequencies.
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How many ALMA telescopes are there?
There are a total of 66 ALMA (Atacama Large Millimeter/submillimeter Array) telescopes located in the Atacama Desert in Chile. These telescopes work together as a single interferometer to observe astronomical objects in millimeter and submillimeter wavelengths.
Why have no large refracting telescopes been built since 1900?
Refracting telescopes suffer from chromatic aberration, refracting telescopes have several surfaces to shape and polish, making large glass lenses without interior defects is very difficult, and large glass lenses are more difficult to support than large mirrors.
Are telescopes dangerous?
Telescopes are not dangerous in normal operation. A large telescope might hurt you if it fell on you.
Is refracting telescopes bigger then reflecting telescopes?
Not necessarily. Refracting telescopes can be large, but reflecting telescopes can also be quite large and often have larger apertures due to their design. The size of a telescope depends on its purpose and design specifications rather than whether it is refracting or reflecting.
Connecting multiple telescopes together to combine the images is called?
telescopes
How many ALMA telescopes are there?
There are a total of 66 ALMA (Atacama Large Millimeter/submillimeter Array) telescopes located in the Atacama Desert in Chile. These telescopes work together as a single interferometer to observe astronomical objects in millimeter and submillimeter wavelengths.
What telescopes is the largest reflecting refracting x-ray or the very large array?
It's difficult to understand the question, but WikiAnswers doesn't do well with multiple choice questions. In general, refracting telescopes are smaller than reflecting telescopes; a refractor has the light going straight through the tube, and structural considerations force limits on its size. In a reflecting telescope, the light path is folded back on itself, and reflecting mirrors reflect more light than thick lenses can pass through. But the largest current reflecting telescope is perhaps 300 inches in diameter, although larger ones are planned. By contrast, the Very Large Array of radio telescopes is ACRES in total size, and there is no theoretical limit in how large "it" could be - because "it" is actually "they". Dozens, potentially hundreds of radio telescopes can add their size together to develop a more sensitive and more precise instrument.
Reflecting telescopes differ from refracting telescopes in having what?
Two large objective lenses.
How is the VLA similar to an optical telescope?
well,both telescopes let you look into the ground into the inner core and you see deep in he atmosphere which is space. Errr... The Very Large Array is an array of radio-telescopes, i.e. it detects radio emissions from stars and similar. An optical telescope as its name suggests, collects visible light. The similarity is that increasing the aperture increases the radiation-gathering power by a square-law. In an optical telescope this is achieved by a larger mirror (or lens but most large telescopes are reflecting.) The VLA uses a "synthetic aperture" to gain the advantages of increasing its gathering area without the cost and complexity of building a single, very large dish.
Why big telescopes?
Large telescopes have improved resolution over small telescopes and as such can gather clearer images of objects further away.
Why have no large refracting telescopes been built since 1900?
Refracting telescopes suffer from chromatic aberration, refracting telescopes have several surfaces to shape and polish, making large glass lenses without interior defects is very difficult, and large glass lenses are more difficult to support than large mirrors.
Are telescopes dangerous?
Telescopes are not dangerous in normal operation. A large telescope might hurt you if it fell on you.
Why are large telescopes made?
to see uranus
Is refracting telescopes bigger then reflecting telescopes?
Not necessarily. Refracting telescopes can be large, but reflecting telescopes can also be quite large and often have larger apertures due to their design. The size of a telescope depends on its purpose and design specifications rather than whether it is refracting or reflecting.
Connecting multiple telescopes together to combine the images is called?
telescopes
What type of radiation does the VLA telescope give off?
None whatsoever. The Very Large Array COLLECTS radiation, in the form of radio waves. The array has to be Very Large, because the signals are so incredibly faint. In fact, the energy of a single match, the kind you might use to light a campfire, is more than the energy collected in all the radio telescopes in the world in the last 100 years!
Is it more difficult to produce large mirrors for telescopes that have large objective lenses?
false
