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Astronomy FITB

Fill in the blank questions for Astronomy

QuestionAnswer
What is the mass of Jupiter? [Assume the Callisto's mass is negligible compared with that of Jupiter, and use the modified version of Kepler's third law 1.87x10^27
Because he failed to observe stellar ________, Aristotle wrongly concluded we could not be in orbit around the Sun. parallax
Ptolemy's model was _____, with the Earth fixed in the center of the universe. geocentric
For Galileo, the observation of the phases of _____ proved that Ptolemy's geocentric model with epicycles was wrong. Venus
The three laws of planetary motion by ______ allowed us to predict planetary motion Kepler
Like latitude on Earth, ___________ in the sky is measured in degrees north and south of the equator. declination
The twelve constellations through which the Sun passes are signs of the ______. Zodiac
The time interval of 365.242 days is defined as the _____________. tropical year
A frequency of one _________ means the wave is vibrating a million times per second; this is a typical carrier frequency for FM radio megahertz
The Sun's blackbody curve peaks in the _______ portion of the spectrum. visible
Knowing the peak emission wavelength of a blackbody allows you to determine its ___________. temperature
Fraunhofer was the German astronomer who first noted __________ lines in the Sun's spectrum absorption
To a large degree, the ___ has replaced photographic film for astronomical imaging. CCD
The separation of read and blue light in single-lens scopes is called _________ aberration. chromatic
________ optics deform the shape of the mirror to compensate for the turbulence in the atmosphere and yield a diffraction-limited image. Adaptive
Of all the planets known in antiquity, ______ is the hardest to observe visually. Mercury
The only two planets which can transit the Sun are ________ Mercury and Venus
The direction of the rotation of Venus is exceptional because it is in a __________ direction. retrograde
Because of their low surface gravities, the Moon and Mercury lack ___________. atmospheres
In brightness, Jupiter is second only to the planet ______ most of the time. Venus
The most famous and long lasting storm in the solar system is _____. the Great Red Spot
Created by: dfw90
 

 



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