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exam1-samples - What is the Right Ascension of the sun on a...

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What is the Right Ascension of the sun on a) the Vernal Equinox? b) the Summer Solstice? c) the North Celestial Pole? d) the Celestial Equator? Suppose you observe the sun crossing the local meridian on the day of the Spring Equinox in New Haven, CT. a) What are the sun’s RA and Dec at this time? b) What are the sun’s altitude and azimuth at this time? Imagine another observer at your same longitude in central Peru at latitude = 13° S making the same observation at the same time. c) What are the sun’s RA and Dec as seen by this observer in Peru at this time? d) What are the sun’s altitude and azimuth for the Peruvian observer?
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could have helped prehistoric astronomers predict eclipses. The Gregorian calendar no longer follows the moon, but we still have calendar “months” that are bit longer than a synodic month, so it’s likely that usually there will be only one full moon per month in the calendar. a) Is it ever possible for a month in the modern
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This note was uploaded on 10/15/2008 for the course ASTR 135 taught by Professor Michaelfaison during the Spring '08 term at Yale.

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exam1-samples - What is the Right Ascension of the sun on a...

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