We see an area of the Mare Nubium on which we distinguish some small but distinct craters through a telescope. They are Wolf (25 km), Nicollet (15 km) and Birt (17 km). Of the three, Wolf is interesting. The flooded crater has a heart shaped drawing aspect. Its edge is not continuous, but is interrupted south.
You have to keep in mind, that the images are inverted, as seen through a telescope. So the cardinal points are also reversed.
East of Wolf, is Nicollet (left), a funnel-shaped crater as Birt, which is east of Nicollet.
In this area there are several craters almost completely covered by lava that can be seen only through an astronomical telescope.
For example, the West's Wolf, observe a crater, like I drew a circle on the Moon. It's a satellite crater of Wolf, Wolf T (27 km). It has such an aspect was almost completely covered by lava (Gould (34 km) and Opelt (49 km) are two other similar craters south of Wolf).
And to the west, is the terminal, the boundary between light and darkness, where we find Bullialdus (61 km) crater and Bullialdus A (26 km) and B (21 km). All are filled with darkness.
Moon Age: 9.05 days
Phase: 70.5% (0% = New, 100% = Full)
Distance: 399.221 km
Optics: Celestron C8-Newtonian telescope, 20mm Plossl, 2x barlow
Mount: CG5 (EQ5)
Camera: Sony CX130
Location: Baia Mare, Romania
Processing: Registax, FastStone Image Viewer