Pallas is a heavily eroded lunar impact crater located to the north of the Sinus Medii.
It was named after the German-born Russian natural historian Peter Simon Pallas.
On November 15, 1953, the physician and amateur astronomer Dr. Leon H. Stuart took a picture of the Moon that appeared to show a flare of light about 16 km southeast of Pallas.
The crater has the correct size, shape, and albedo to match the expected impact energy.
[2] By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Pallas.