Classicly

The solar system which Shadrak called Maj, crawled around the crescent of Noir, and we sighted the third planet, giving a ruddy glow. That gave us a kick, but I felt a shiver as I watched that ebon horn blotting out the sky, reaching hungrily toward Maj. Jim said the movement of Noir had been constant at 110 kilometers a second, but that the speed was building up. He called for a robot check on the tip of Noir and Spor. After careful study, Jim flashed the telescreen for Shadrak. "Noir tip at 60 plus 382," he reported.