hw4 - Astro 102/104 Name: Our Solar System Spring 2008...

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Astro 102/104 Our Solar System Spring 2008 Name: Section: Homework 4: Astronomical Instruments, Solar System Survey Due: In your section the week of February 18 th . Be neat and concise, show your work, and remember units. An answer without the correct units is wrong. Readings: Ch 6,7,9.1, and lectures 8,9 and 10. 1. [4 points] (a) What is the diffraction limit (in arcseconds) of a telescope of aperture 2 meters at 500 nm observations? (b) It turns out that under normal conditions, this telescope has the effective angular resolution of 0.1”. Is this the same as your number in part (a)? Explain why or why not. (c) How can you improve the angular resolution of this telescope? (d) What is the maximum angular resolution this telescope can have? Under ideal conditions, should this telescope be able to resolve 2 stars separated by 0.1”? Explain why this is different from your answer in part (b).
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2. [2 points] Draw simple diagrams and label the key parts of the following telescopes.
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hw4 - Astro 102/104 Name: Our Solar System Spring 2008...

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