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Statistics for Astronomy History Multiple Choice

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General Stats

This quiz has been taken 454 times
(288 since last reset)
The average score is 7 of 15

Answer Stats

Question	Answer	% Correct
Pluto is not the only celestial body to be demoted from planet status. Which of these were once called a planet but are not considered one today?	Ceres	71%
Who discovered the planet Uranus?	William Herschel	67%
Why are there seven days in a week?	Each unfixed object visible in the sky (e.g. 5 planets, moon, & sun) were assigned a day	65%
#4 was also convinced of the existence of a planet very close to the Sun, whose gravitational effects could explain Mercury's shifting aphelion. What is the name he gave this nonexistent planet?	Vulcan	63%
Who is credited with the discovery of Neptune?	Urbain Le Verrier	60%
What discovery led to Pluto being demoted from planet status in 2006?	The Discovery of Eris, a similarly sized body in the Kuiper Belt	56%
How did Friedrich Bessel directly measure the distance from the Sun to another star in 1838?	Using Parallax: Looking at the change in the angular position of the star at different times of the year and calculating the distance with trigonometry.	54%
How were Gamma Radiation Bursts, or GRBs, first observed?	Satellites meant to detect nuclear explosions instead detected flashes in distant galaxies	52%
How many planets did Voyager 2 fly by, not counting Earth?	4	50%
Mercury's shifting aphelion, or in other words the changing orientation of its elliptical orbit, remained unexplained until 1915. Who offered up the now-accepted explanation for this phenomenon?	Albert Einstein, citing general relativity.	46%
Who first observed the Andromeda Galaxy in writing?	Abd al-Rahman al-Sufi in 964 CE	37%
Who first proposed that there are several galaxies besides the Milky Way?	Thomas Wright in 1750	33%
Annie J. Cannon developed the modern stellar classification system in the early 1900s. How are stars classified under this system?	By Color and Temperature	31%
What was the first major piece of evidence suggesting the existence of gravitational waves?	A binary pulsar was discovered, and the gradual decay of its orbital period could only be explained through the existence of gravity waves	28%
Which of the following was NOT a proposed name for Uranus?	Her Majesty's Star	16%

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