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Astronomy Lab and Clay Telescope


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Visual Observations of the Ring Nebula

SPU-21 Fall 2014

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The Ring Nebula, or Messier 57, is a planetary nebula in the constellation Lyra. In this lab, we will visually observe the Ring Nebula and use a reticle eyepiece (an eyepiece with illuminated tick marks) to determine the angular diameter of the nebula. We will return to this object later in the semester to get a CCD observation of it and get a more precise measurement of the angular diameter.