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Amateur Astronomy:Observing the Moon. Any amateur telescope has adequate resolution to identify geological features on the Moon. The light highlands and dark maria should be evident, and shadowing is visible near the line between night and day. Try to observe the Moon near the first-or third-quarter phase. Sketch or photograph the Moon at low magnification, and then zoom in on a region of interest. Again sketch or photograph your field of view, them label the features and indentify the geological process that created them. Look for craters, volcanic plains and tectonic features. Estimate the size of each feature by comparing it to the size of the whole Moon (radius = 1738 km).
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