Crater-Hopping: Observing the Moon on Day 8
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With first quarter the day before, the Moon enters its waxing gibbous phase today, which allows us to look down directly on features that straddle the prime selenographical meridian, as shown in Figure. 13.1. The western shore of Mare Serenitatis becomes visible, along with the central portion of Mare Frigoris, and the large craters along the southern section of the prime meridian. About 134 named features become visible this day.