He is the namesake of the lunar crater Krafft which has a diameter of 51 km .
Wolfgang Ludwig Krafft ( 25 August 1743 -- 20 November 1814 ) was a German astronomer and physicist .
Wolfgang Ludwig Krafft is the astronomer of the lunar crater astronomer which has a diameter of 51 km .
Wolfgang Ludwig Krafft ( 25 August 1743 -- 20 November 1814 ) was a German astronomer and physicist .