What are the three basic components of a modern astronomical instrument? Describe each in one to two sentences. (Select all that apply.) a magnifier, which increases the size of the image a motor, which allows the telescope to track sorces as they move a detector, which senses and records the radiation an eyepiece, where an astronomer can view the image created a telescope, which collects radiation a device which sorts radiation by wavelength

What are the three basic components of a modern astronomical instrument? Describe each in one to two sentences. (Select all that apply.) a magnifier, which increases the size of the image a motor, which allows the telescope to track sorces as they move a detector, which senses and records the radiation an eyepiece, where an astronomer can view the image created a telescope, which collects radiation a device which sorts radiation by wavelength

Foundations of Astronomy (MindTap Course List)

14th Edition

ISBN:9781337399920

Author:Michael A. Seeds, Dana Backman

Publisher:Michael A. Seeds, Dana Backman

Chapter6: Light And Telescopes

Section: Chapter Questions

Problem 14P

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Similar questions

What are the three basic components of a modern astronomical instrument? Describe each in one to two sentences.
One of the earliest astronomical CCDs had 160,000 pixels, each recording 8 bits (256 levels of brightness). Today's CCDs may contain 100 million pixels, each recording 15 bits (32,768 levels of brightness).How many times more bits of data are produced by today's CCDs in a single image than that of the earliest CCDs?
A series of optical telescopes produced an image that has a resolution of about 0.00350 arc second. What is the smallest diameter telescope that could theoretically resolve these features using light with a wavelength of 1.90 μm? (Note: 1arcsec=1/3600∘) Express your answer to three significant figures and include appropriate units.
Let’s say that we have a radio dish that is 22 meters in diameter. It is designed to detect radio waves at 0.00006 centimeters in wavelength. What is the maximum resolution, or diffraction limit, of this telescope in arcseconds? (Make sure to show all calculations with units and show/explain any conversions.)
Name the two spectral windows through which electromagnetic radiation easily reaches the surface of Earth and describe the largest-aperture telescope currently in use for each window.
Suppose you are looking for sites for a visible-light observatory, an infrared observatory, and a radio observatory. What are the main criteria of excellence for each? What sites are actually considered the best today?
Define optics and also explain its two major parts.
Telescopes can now be operated remotely from a warm room, but until about 25 years ago, astronomers worked at the telescope to guide it so that it remained pointed in exactly the right place. In a large telescope, like the Palomar 200-inch telescope, astronomers sat in a cage at the top of the telescope, where the secondary mirror is located, as shown in Figure 6.6. Assume for the purpose of your calculation that the diameter of this cage was 40 inches. What fraction of the light is blocked? Figure 6.6 Focus Arrangements for Reflecting Telescopes. Reflecting telescopes have different options for where the light is brought to a focus. With prime focus, light is detected where it comes to a focus after reflecting from the primary mirror. With Newtonian focus, light is reflected by a small secondary mirror off to one side, where it can be detected (see also Figure 6.5). Most large professional telescopes have a Cassegrain focus in which light is reflected by the secondary mirror down through a hole in the primary mirror to an observing station below the telescope.