Dawes_(Martian_crater)
Dawes (Martian crater)
Crater on Mars
Dawes Crater is located in the Sinus Sabaeus quadrangle of Mars, at 9.2 S and 38 E.[1] It is about 191 km (119 mi) in diameter, and was named after William R. Dawes, a British astronomer (1799–1868)[1] who was ahead of his time in believing that Mars only had a thin atmosphere. Dawes presumed that the atmosphere of Mars was thin because surface markings on the planet could easily be seen.[2]