Horizons: Exploring the Universe (MindTap Course List)
14th Edition
ISBN: 9781305960961
Author: Michael A. Seeds, Dana Backman
Publisher: Cengage Learning
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Chapter 5, Problem 1LTL
To determine
The causes of distortion observed in the star before adapting optics correct the image.
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Which of the following pairings of telescope diameter and observational wavelength would give the best resolution images of an object with a telescope? Explain why you chose the telescope and wavelength combination you did, and calculate the angular resolution you could achieve with it.
It would be best to observe with...
Option 1: a 10 m diameter optical telescope on the ground with λ= 550 nm
Option 2: a 2.4 m diameter optical telescope in space with λ=500 nm
Option 3: a 100 m radio telescope on the ground with λ=100 cm
The James Webb Telescope is an important innovation in Astronomy and its implementation was first explained to the public during the timeline of our course this summer.
Prepare an explanation which includes the following:
What is the James Webb Telescope? Include a description of the tool itself and a brief history.
What is the importance/significance of this tool for future astronomical studies?
The Giant Magellan Telescope is a new telescope being built in Chile with a mirror 25 meters in diameter.
Part 1: If you neglect the impact of Earth's atmosphere, what is the angular resolution limit (diffraction limit or resolving power) of this telescope in green light (500 nm)?
Give your answer in arcseconds.
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Chapter 5 Solutions
Horizons: Exploring the Universe (MindTap Course List)
Ch. 5 - Prob. 1RQCh. 5 - Prob. 2RQCh. 5 - Prob. 3RQCh. 5 - Prob. 4RQCh. 5 - Prob. 5RQCh. 5 - Prob. 6RQCh. 5 - Prob. 7RQCh. 5 - Prob. 8RQCh. 5 - Prob. 9RQCh. 5 - Prob. 10RQ
Ch. 5 - Prob. 11RQCh. 5 - Prob. 12RQCh. 5 - Prob. 13RQCh. 5 - Prob. 14RQCh. 5 - Prob. 1DQCh. 5 - Consider the “atmospheric windows” of Earth’s...Ch. 5 - The thickness of the plastic in plastic bags is...Ch. 5 - What is the wavelength of radio waves transmitted...Ch. 5 - Prob. 3PCh. 5 - Prob. 4PCh. 5 - Prob. 5PCh. 5 - Prob. 6PCh. 5 - H does the resolving power of the 5-rn telescope...Ch. 5 - If you build a telescope with a focal length of...Ch. 5 - Prob. 9PCh. 5 - Prob. 10PCh. 5 - Prob. 1LTLCh. 5 - The star images in the photo in Figure UN 5-4 are...Ch. 5 - The X-ray image in Figure UN 5-5 shows the remains...
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- 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_forwardThe HST cost about $1.7 billion for construction and $300 million for its shuttle launch, and it costs $250 million per year to operate. If the telescope lasts for 20 years, what is the total cost per year? Per day? If the telescope can be used just 30% of the time for actual observations, what is the cost per hour and per minute for the astronomer’s observing time on this instrument? What is the cost per person in the United States? Was your investment in the Hubble Space telescope worth it?arrow_forwardWhen 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.arrow_forward
- Which of these statements best explains why a telescope enables us to see details of a distant object such as the Moon or a planet more clearly? The image formed by the telescope is larger than the object. The image formed by the telescope extends a larger angle at the eye than the object does. The telescope can also collect radio waves that sharpen the visual imagearrow_forwardConsider a telescope with a primary mirror diameter of 10 inches compared to one which has a primary mirror diameter of 15 inches. Assuming both are of excellent optical quality, the larger telescope has ---- O one and a half times the light gathering power but worse resolution O over twice the light gathering power and better resolution O one and a half times the light gathering power and better resolution O over twice the light gathering power but worse resolution O the same light gathering power but much better reesolution O the same light gathering power but much better resolutionarrow_forwardThe 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.)arrow_forward
- One of the instruments on board the Unreal X-ray Observatory (UXO) has a detector with 3600 pixels x 1800 pixels and a field of view of 30 ar- cmin x 15 arcmin. If each pixel is 24 µm x 24 μm in size, calculate the plate scale, in arcsec mm-¹, and hence determine the focal length of the UXO telescope.arrow_forwardHow does the resolving power of the Mount Palomar 5-m telescope compare with that of the 2.4-m Hubble Space Telescope? AMount Palomar dHubble Space Telescope Why does HST generally still outperform the ground-based 5-m telescope? The resolving power of the Mount Palomar 5-m telescope has a higher value than that of HST, and telescopes with higher values for resolving power can not distinguish objects as well as telescopes with lower values for resolving power. Earth's atmosphere affects visibility for the Mount Palomar 5-m telescope and limits resolving power to about 0.5 seconds of arc. HST is not affected by distortion due to the atmosphere. The resolving power of the Mount Palomar 5-m telescope has a lower value than that of HST, and telescopes with lower values for resolving power can not distinguish objects as well as telescopes with higher values for resolving power. HST is in orbit around the Earth, and so it is closer to the stars than the Mount Palomar 5-m telescope. By being…arrow_forwardspy satellite orbiting 410 km above Earth is supposedly capable of counting individual people in a crowd in visual-wavelength images. Assume that the satellite's cameras operate at a wavelength of 550 nm. Assume an average person has a size of 0.6 m as seen from above. Estimate the minimum telescope diameter that the satellite must carry. (Hint: Use The small-angle formula angular diameter (arc seconds) 2.06 105 = linear diameter distance to convert linear size to angular size.)arrow_forward
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