Cosmic Perspective (Looseleaf)
7th Edition
ISBN: 9780321840943
Author: Bennett
Publisher: PEARSON
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Chapter 6, Problem 9EAP
List at least three ways in which Earth's atmosphere can hinder astronomical observations. What problem can adaptive optics help with?
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Imagine that you are the head of a funding agency that can afford to build one telescope. Which of the following proposed telescopes would be best to support?
A.
a visible light telescope in Earth orbit
B.
An x-ray telescope located on a mountain in Chile
C.
A gamma ray telescope in Hawaii
D.
An ultraviolet telescope located in Earth orbit
Which of the following telescopes must be used above Earth’s atmosphere?
a.
an optical telescope
b.
the VLBI telescope
c.
an X-ray telescope
d.
a radio telescope
e.
none of the above
When astronomers discuss the apertures of their telescopes, they say bigger is better. Explain why.
a) A wider aperture can observe a significantly larger portion of the sky. b) A wider aperture makes a telescope easier to aim. c) A wider aperture allows a telescope to collect more light, so it can produce images with higher resolution. d) A wider aperture allows a telescope to collect more light, so it can detect fainter light sources.
Chapter 6 Solutions
Cosmic Perspective (Looseleaf)
Ch. 6 - Prob. 1VSCCh. 6 - Prob. 2VSCCh. 6 - Prob. 3VSCCh. 6 - Prob. 4VSCCh. 6 - Prob. 5VSCCh. 6 - How does your eye focus light? How is a glass lens...Ch. 6 - How does a camera record light? How are images...Ch. 6 - What are the two key properties of a telescope,...Ch. 6 - What is the diffraction limit, and how does it...Ch. 6 - How do reflecting telescopes differ from...
Ch. 6 - What are the three basic categories of...Ch. 6 - Prob. 7EAPCh. 6 - What do we mean by spectral resolution? Why is...Ch. 6 - List at least three ways in which Earth's...Ch. 6 - 10. Describe how deeply each portion of the...Ch. 6 - Prob. 11EAPCh. 6 - Prob. 12EAPCh. 6 - Prob. 13EAPCh. 6 - Prob. 14EAPCh. 6 - Prob. 15EAPCh. 6 - Prob. 16EAPCh. 6 - Prob. 17EAPCh. 6 - Prob. 18EAPCh. 6 - Prob. 19EAPCh. 6 - Prob. 20EAPCh. 6 - Prob. 21EAPCh. 6 - Prob. 22EAPCh. 6 - Prob. 23EAPCh. 6 - Prob. 24EAPCh. 6 - Prob. 25EAPCh. 6 - Prob. 26EAPCh. 6 - Prob. 27EAPCh. 6 - Prob. 28EAPCh. 6 - Prob. 29EAPCh. 6 - Prob. 30EAPCh. 6 - Prob. 31EAPCh. 6 - Prob. 32EAPCh. 6 - Prob. 33EAPCh. 6 - Prob. 34EAPCh. 6 - Prob. 35EAPCh. 6 - Prob. 36EAPCh. 6 - Prob. 37EAPCh. 6 - Prob. 38EAPCh. 6 - Prob. 39EAPCh. 6 - Prob. 40EAPCh. 6 - Prob. 41EAPCh. 6 - Prob. 42EAPCh. 6 - Prob. 43EAPCh. 6 - Prob. 44EAPCh. 6 - Prob. 45EAPCh. 6 - Prob. 46EAPCh. 6 - Prob. 47EAPCh. 6 - Prob. 48EAPCh. 6 - Prob. 49EAPCh. 6 - Prob. 50EAPCh. 6 - Prob. 51EAPCh. 6 - Prob. 52EAPCh. 6 - 53. Major Ground-Based Observatories. Take a...Ch. 6 - Prob. 54EAPCh. 6 - Prob. 55EAP
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- 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_forwardWhat kind of visible-light and infrared telescopes on the ground are astronomers planning for the future? Why are they building them on the ground and not in space?arrow_forward
- Why are the largest visible-light telescopes in the world made with mirrors rather than lenses?arrow_forwardWhat was the problem with the Hubble Space Telescope and how was it solved?arrow_forwardSuppose 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?arrow_forward
- Many decades ago, the astronomers on the staff of Mount Wilson and Palomar Observatories each received about 60 nights per year for their observing programs. Today, an astronomer feels fortunate to get 10 nights per year on a large telescope. Can you suggest some reasons for this change?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_forward
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