Horizons: Exploring the Universe (MindTap Course List)
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 9P
To determine

The requirement to build the telescope.

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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. Part 2: The current Magellan telescope has a mirror 6 meters in diameter. How much more light per second will the Giant Magellan capture compared to the current Magellan?
An astronomer wants to design an infrared telescope with an angular resolution of 1.5 arcseconds at a wavelength (L, in our equation) of 20 micrometers. What would be the diameter (D) of the mirror they would need to make?
Two identical stars are moving in a circular orbit around one another with an orbital separation of 2 AU. The system lies 200 light-years from Earth. If we happen to view the orbit head-on, how large a telescope would we need to resolve the stars, assuming diffraction-limited optics at a wavelength of 2 μm?
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