A rather quick sketch of Mare Humorum and a number of prominent craters, including Mersenius and Gassendi. The seeing for once was perfect, but after having finished several other sketches the same evening my endurance failed me.
Below is an earlier sketch focusing on the Gassendi crater. This was my first try at a close up sketch of one of the larger craters. At the time seeing was perfect, but light clouds kept interfering.