关于这张图
S68-51304 (December 1968) --- North American Rockwell artist's concept illustrating a phase of the scheduled Apollo 8 lunar orbit mission. Here, the Apollo 8 spacecraft Command and Service Modules (CSM), still attached to the Saturn V (S-IVB) third stage, heads for the moon at a speed of about 24,300 miles per hour. The trajectory, computed from the Saturn V's third stage instrumentation unit, provides a "free return" to Earth around the moon.
