astronomy exam2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| The zero measure for longitude was chosen to be ... | the prime meridian
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| If you are at a latitude of 66.5°N, you are on the | arctic circle
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| On the celestial sphere, the star Polaris is found very near the ... | north celestial pole
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| Which of the following stars is located closest to the celestial equator on the celestial sphere? A star with a declination measured to be ... | -6 degrees
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| The autumnal equinox is on | sept 21
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| Describe the motion of the Earth: The Earthrevolves around the sun with a period of 1 year, whilethe Earth rotates on its axis with a period of 1 day. | revolves, 1 year, rotates, 1day
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| The Right Ascension and Declination of the sun on the winter solstice are | 18 hours and -23.5 degrees
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| If the sun is at your zenith point at noon on May 30, what is your approximate latitude? | 20 degrees north
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| Which of the following stars (described by their azimuth and altitude) are closest to the horizon? | Az. = 285°, Alt. = 2°
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| In Lincoln, the sun rises directly east on the Vernal equinox. Three weeks later it will rise .. | north of east
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| If you are at a latitude of 15°N, the altitude of the NCP is | 15 degrees
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| From Lincoln (lat. = 41°N), the meridinal altitude of the sun on thesummer solstice is | 72.5 degrees
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| From the south pole, the meridinal altitude of the star Sirius (dec. = -16°)is | 16 degrees
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| In Lincoln we have many circumpolar stars. An observer at a latitude of75°N will have | more
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| From Havana, Cuba (lat. = 23°N) the star Sirius (dec. = -16°) is in the declination range known as | rise and set
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| If in a time-lapse photograph, the paths of stars are traveling straight down and making aright angle with the horizon, you must be ... | at the equator looking west
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| If one took a 3 hour time exposure photograph of the region of the sky aroundthe north celestial pole, the photograph would show the stars as | small arcs centered at the North Celestial Pole
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| Neap tides occur when the | moon and sun are at right angles with respect to the earth
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| Speaking of the moon: | The sidereal period is the time it takes for the moon toreturn to the same position among the stars and it is 27.3 days
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| phase of moon pic. | waning gibbous
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| Which of the following sets of phases are out of order? | waning gibbous, first quarter, waning crescent, new
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| The length of time between a new moon and first quarter is approximately_______. | 1 week
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| The waning crescent is on the meridian at | 9am
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| The waning gibbous rises at | 9pm
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| In the picture shown, the phase of the moon is last (third) quarter at position: | #2, crescent
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| Total lunar eclipses occur around the time of | full moon
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| If a total solar eclipse occurred on Jan. 1, the soonest another total solareclipse could possibly occur is roughly | july 1st
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| If the moon rises tonight at 7:00 p.m., then tomorrow night it will rise at | 7:50pm
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| Looking along the observer's meridian from Lincoln at night, you are most likely to see the planet Mars | 45 degrees about the south point
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| The period of the moon's rotation on its axis is | the same as its revolution around the earth
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| The type of eclipse shown in the In the picture below is a: | annual solar eclipse
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| From a latitude of 15°S the number of daylight hours on September 21st is | 12hours
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| Which of the following contribute to seasons? | both A and B
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| the sun through the year | north of the celestial moving south, shorter, 12 hours, O degrees, the same as
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| December 21st, 18 hours, 23.5 degrees, summer in Argentina, Winter in France, tropic of capricorn
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| As the new year begins, the sun is south of the CE moving north and days are getting longer in the northern hemisphere. Over the next weeks, the sun will continue to move northward andwill next cross the CE on the Vernal Equinox. | south of the
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