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Unformatted text preview: Night Observing Christy Kim On a mildly cloudy day on October 7 th , 2009, I went to the observatory here on campus. Standing outside, I found out that this observatory was built in 1896 and is part of the Natural Register of Historic Places. The moon had not risen yet, but was in a waning gibbous stage because we had just had a full moon earlier. I walked to the first phase of the night: looking through the 12 inch telescope. The 12" Brashear refracting telescope was built in 1896, which makes it 113 years old. It has a 180 inch focal length and an eyepiece that is 25 mm. I observed Jupiter through this telescope and got to see the bands of clouds and planes that surround it. Galileo first observed the 4 largest moons of Jupiter in 1610, which is why they are called the Galilean moons. Studying these 4 moons allowed Galileo to realize that the earth is not the center of the universe. Through the refracting telescope, Jupiter appeared to have a blue light around it, as if it were a halo. This is not because telescope, Jupiter appeared to have a blue light around it, as if it were a halo....
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This note was uploaded on 01/22/2011 for the course ASTR 150 taught by Professor Baer during the Spring '08 term at University of Illinois, Urbana Champaign.
- Spring '08