| The six-day-old crescent Moon
< The three-day-old crescent
Thomas Harriot made the very first drawing ever of the Moon, on 26 July
1609, it was at a similar phase to this view. You can even identify
some of the features that he drew using his very simple telescope.
The six-day-old Moon
it is not the largest lunar features that are the easiest to see. To
the west of the Mare Crisium is a small but prominent ray crater,
two of whose rays define a diamond shape called the Palus Somnii (4).
three adjoining craters of Theophilus (5), Cyrillus (6) and Catharina (7) are also easy to
spot, and are probably shown on Harriot's first drawing. Near them is a
ridge called the Altai Scarp (8).
Other craters are:
For a map showing several hundred labelled features, go to our interactive Moon map.