Craters
Doppler
Origin of the name
Johann Christian; Austrian physicist, mathematician, astronomer (1803-1853).
When to observe it
On the far side: it never faces the Earth. Only spacecraft have seen it.
Khonsu EN/FR Français Khonsu EN/FR FrançaisCraters
Johann Christian; Austrian physicist, mathematician, astronomer (1803-1853).
On the far side: it never faces the Earth. Only spacecraft have seen it.