About 5 a.m.
But the course of the projectile could not be guided . There was nothing to do but submit . A balloon could not be guided , much less a projectile when you are inside . About 5 a.m. the northern limit of the Sea of Rains was at last passed . Mounts La Condamine and Fontenelle remained , the one on the left , the other on the right . That part of the disc , starting from the 60th degree , became absolutely mountainous . The telescopes brought it to within one league , an inferior distance to that between the summit of Mont Blanc and the sea level .