Stars and Galaxies (MindTap Course List)
10th Edition
ISBN: 9781337399944
Author: Michael A. Seeds
Publisher: Cengage Learning
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Question
Chapter 6, Problem 7LL
To determine
The reason for the telescope cannot resolve a star diameter and the apparent diameter of the stars.
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What is the resolving power of a 26 cm telescope at a wavelength of 550 nm? What do two stars 1.5 arcseconds apart look like through this telescope? Most of Galileo’s telescopes were only about 2 cm in diameter. Should he have been able to resolve the two stars mentioned?
What is the limit of resolution for a telescope lens with a diameter of 120 cm when it observes a star at a distance of 4 light-years? Use the wavelength of l = 550 nm in your calculations.
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Chapter 6 Solutions
Stars and Galaxies (MindTap Course List)
Ch. 6 - Prob. 1RQCh. 6 - Prob. 2RQCh. 6 - Prob. 3RQCh. 6 - Prob. 4RQCh. 6 - Prob. 5RQCh. 6 - Prob. 6RQCh. 6 - Prob. 7RQCh. 6 - Prob. 8RQCh. 6 - Prob. 9RQCh. 6 - Prob. 10RQ
Ch. 6 - Prob. 11RQCh. 6 - Prob. 12RQCh. 6 - Prob. 13RQCh. 6 - Prob. 14RQCh. 6 - Prob. 15RQCh. 6 - Prob. 16RQCh. 6 - Prob. 17RQCh. 6 - Prob. 18RQCh. 6 - Prob. 19RQCh. 6 - What is the role of prisms and gratings in...Ch. 6 - Prob. 21RQCh. 6 - Prob. 22RQCh. 6 - Prob. 23RQCh. 6 - Prob. 24RQCh. 6 - Prob. 1PCh. 6 - Prob. 2PCh. 6 - Prob. 3PCh. 6 - Prob. 4PCh. 6 - Prob. 5PCh. 6 - Prob. 6PCh. 6 - Prob. 7PCh. 6 - Prob. 8PCh. 6 - Prob. 9PCh. 6 - Prob. 10PCh. 6 - Prob. 11PCh. 6 - Prob. 12PCh. 6 - Prob. 13PCh. 6 - Prob. 14PCh. 6 - Prob. 15PCh. 6 - Prob. 1SPCh. 6 - Prob. 2SPCh. 6 - Prob. 2LLCh. 6 - Prob. 3LLCh. 6 - Prob. 4LLCh. 6 - Prob. 5LLCh. 6 - Prob. 6LLCh. 6 - Prob. 7LLCh. 6 - Prob. 8LL
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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_forwardWhat are some advantages of radio telescopes over optical scopes? Explain how adaptive optics can help produce a sharper image.arrow_forwardWhat is the diffraction limit of a 4 m telescope observing light at 550 nm? Answer in arc secondsarrow_forward
- 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.)arrow_forwardUse diagrams to describe how the following types of telescope collect light from a single point- source at infinity, and form a focused image in the focal plane: (i) refractor (ii) Newtonian reflector (iii) catadioptric telescope. A telescope with focal ratio f/10 and diameter D = 0.5 m has a CCD detector placed at its focal plane. The CCD chip has dimensions 3 × 3 cm2 . Determine the size of the field of view that can be imaged on the CCD detector in units of arcminutes × arcminutes, and state whether or not an image of the full moon can be captured. Assume the angular diameter of the full moon is 30 arcminutes.arrow_forward
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