The 305-m-diameter Arecibo radio telescope pictured in figure below detected radio waves with a 9- cm average wavelength. Hint a. What was the angle between two just-resolvable point sources for this telescope? Minimum resolvable angle was urad. b. How close together could these point sources be at the 2.57 million light-year distance of the Andromeda Galaxy? (Note: Estimated radius of the Andromeda Galaxy is about 7 x 10¹7 km.) The point sources could be as close as resolvable distance. x1015 km for minimum

Stars and Galaxies (MindTap Course List)
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Chapter17: Active Galaxies And Supermassive Black Holes
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The 305-m-diameter Arecibo radio telescope pictured in figure below detected radio waves with a 9-
cm average wavelength.
Hint
a. What was the angle between two just-resolvable point sources for this telescope?
Minimum resolvable angle was
urad.
b. How close together could these point sources be at the 2.57 million light-year distance of the
Andromeda Galaxy? (Note: Estimated radius of the Andromeda Galaxy is about 7 x 10¹7 km.)
The point sources could be as close as
resolvable distance.
x1015 km for minimum
Transcribed Image Text:The 305-m-diameter Arecibo radio telescope pictured in figure below detected radio waves with a 9- cm average wavelength. Hint a. What was the angle between two just-resolvable point sources for this telescope? Minimum resolvable angle was urad. b. How close together could these point sources be at the 2.57 million light-year distance of the Andromeda Galaxy? (Note: Estimated radius of the Andromeda Galaxy is about 7 x 10¹7 km.) The point sources could be as close as resolvable distance. x1015 km for minimum
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