21st Century Astronomy
6th Edition
ISBN: 9780393428063
Author: Kay
Publisher: NORTON
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Chapter 6, Problem 4QP
To determine
The resolution of telescope.
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A certain telescope has a 10'x10' field of view that is recorded using a CCD chip having 2048x2048 pixels. What angle on the sky responds to 1 pixel? What would be the diameter in pixels of a typical seeing disk? (1" radius)
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The South African Large Telescope has an aperture of 10.2 meters and was made to observe visible light with a wavelength of 500 nanometers. 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.)
Chapter 6 Solutions
21st Century Astronomy
Ch. 6.1 - Prob. 6.1ACYUCh. 6.1 - Prob. 6.1BCYUCh. 6.2 - Prob. 6.2CYUCh. 6.3 - Prob. 6.3CYUCh. 6.4 - Prob. 6.4CYUCh. 6.5 - Prob. 6.5CYUCh. 6 - Prob. 1QPCh. 6 - Prob. 2QPCh. 6 - Prob. 3QPCh. 6 - Prob. 4QP
Ch. 6 - Prob. 5QPCh. 6 - Prob. 6QPCh. 6 - Prob. 7QPCh. 6 - Prob. 8QPCh. 6 - Prob. 9QPCh. 6 - Prob. 10QPCh. 6 - Prob. 11QPCh. 6 - Prob. 12QPCh. 6 - Prob. 13QPCh. 6 - Prob. 14QPCh. 6 - Prob. 15QPCh. 6 - Prob. 16QPCh. 6 - Prob. 17QPCh. 6 - Prob. 18QPCh. 6 - Prob. 19QPCh. 6 - Prob. 20QPCh. 6 - Prob. 21QPCh. 6 - Prob. 22QPCh. 6 - Prob. 23QPCh. 6 - Prob. 24QPCh. 6 - Prob. 25QPCh. 6 - Prob. 26QPCh. 6 - Prob. 27QPCh. 6 - Prob. 28QPCh. 6 - Prob. 29QPCh. 6 - Prob. 30QPCh. 6 - Prob. 31QPCh. 6 - Prob. 32QPCh. 6 - Prob. 33QPCh. 6 - Prob. 34QPCh. 6 - Prob. 35QPCh. 6 - Prob. 36QPCh. 6 - Prob. 37QPCh. 6 - Prob. 38QPCh. 6 - Prob. 39QPCh. 6 - Prob. 40QPCh. 6 - Prob. 41QPCh. 6 - Prob. 42QPCh. 6 - Prob. 43QPCh. 6 - Prob. 44QPCh. 6 - Prob. 45QP
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- The X-ray image in Figure UN 5-5 shows the remains of an exploded star. Explain why images recorded by telescopes in space are often displayed in representational (“false”) color rather than in the “colors” (wavelengths) received by the telescope.arrow_forwardList the largest-aperture single telescope currently in use in each of the following bands of the electromagnetic spectrum: radio, X-ray, gamma ray.arrow_forwardAnswer in 3-5 sentences. 1. Relate the frequency of peak spectral power density of stars to their visible colors. 2. Demonstrate or describe Wein’s Displacement Law numerically and graphicallyarrow_forward
- What is the diffraction limit of a 4 m telescope observing light at 550 nm? Answer in arc secondsarrow_forwardWhat happens in a Michelson Interferometer? And give a detailed example of where this apparatus is used.arrow_forwardLight takes 499 seconds to travel from Sun to Earth. During that time, the Sun moves across our sky (499/3600)•(360°/24) ≈ 2° ≈ 4 sun-widths. If I want my high-powered laser to have its beam hit the sun, where should I aim?arrow_forward
- What are some advantages of radio telescopes over optical scopes? Explain how adaptive optics can help produce a sharper image.arrow_forwardWhat is the area, in square meters, of a 10-m telescope?arrow_forwardLook at the image on the opening page of this chapter. Some white stars are shown to be very large circles with spikes. Why are these stars apparently very large? What causes the spikes?arrow_forward
- 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.arrow_forwardWhat is meant by “reflecting” and “refracting” telescopes?arrow_forwardSuppose you are observing a binary star with a telescope and are having difficulty resolving the two stars. You decide to use a colored filter to maximize the resolution. (A filter of a given color transmits only that color of light.) What color filter should you choose? (a) blue (b) green (c) yellow (d) redarrow_forward
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