Day 20 brings the terminator to another of my favorite observing and sketching sites, the three craters Theophilus, Catharina and Cyrillus. Mountains are the highlight of day 21. The Apennines, and the large craters Kepler, Copernicus and Tycho are beautiful at lunar sunset. The last quarter moon has arrived. Last Quarter Moon day 22 -27 Rises at midnight, sets at noon.
Dedication is required to complete the viewing of the lunar cycle.
Mare Imbruim and Copernicus are darkening tonight, day 23. On day 24 through 27, most observers are sleeping when the moon is visible. Use binoculars to observe earthshine over the surface of the moon. Questions and Answers Questions arise when Amateur Astronomers are out with their telescopes sharing the universe with the public. Here is a recent question and the answer, which took me a while to find.