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Cards In This Set
| Front | Back |
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What affect does wavelength have on resolution?
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Shorter wavelengths give more detailed picture
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A spectral line is shifted from 600 to 602 nanometers. What is the rate of speed the object is moving away?
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1000km/sec
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Why don't you see the same constellation at 9pm in July as 9pm in December?
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Earth orbits the sun
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How much more light does a telescope with a 200 inch diameter mirros collect than on with a 20 inch diameter mirror?
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100x
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How many seconds are there in a year?
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31, 104, 000
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How far does light travel in one second?
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300,000
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How far does light travel in a year?
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9,500,000,000,000 kilometers
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How many seconds of arc are in a circle?
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1, 296, 000
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How many days elapse between one full moon and the next full moon?
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30 days
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What is more massive, an electron or proton?
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Proton
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Typically how many times bigger is an atom than a nucleus?
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100,000
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Does a planet move most rapidly when it is nearest or fartherst from the sun?
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Nearest
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Which two objects are one astro unit apart?
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Earth and Sun
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The smi-major axis of Satrun's Orbit around the sun is 9.6 au. How long is Saturn's year in earth years?
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30 years
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What direction do astronomers prefer streetlights to face?
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Down
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