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In fact, within hours after the accident, Apollo 13 used the lunar module to maneuver from its planned trajectory to a circumlunar free-return trajectory. [7] Apollo 13 was the only Apollo mission to actually turn around the Moon in a free-return trajectory (however, two hours after perilune, propulsion was applied to speed the return to Earth ...
The trajectory followed by Apollo 13 Sketch of a circumlunar free return trajectory (not to scale).. In orbital mechanics, a circumlunar trajectory, trans-lunar trajectory or lunar free return is a type of free return trajectory which takes a spacecraft from Earth, around the far side of the Moon, and back to Earth using only gravity once the initial trajectory is set.
Apollo 13 (April 11–17, 1970) was the seventh crewed mission in the Apollo space program and would have been the third Moon landing.The craft was launched from Kennedy Space Center on April 11, 1970, but the landing was aborted after an oxygen tank in the service module (SM) exploded two days into the mission, disabling its electrical and life-support system.
Apollo 13 was slated to be the third landing on the moon after Apollo 8 (1968) and Apollo 12 (1969). Launched on April 11, 1970, the crew was led by commander Lovell, along with command module ...
These visualizations, in 4K resolution, depict many different views of the lunar surface, starting with earthset and sunrise and concluding with the time Apollo 13 reestablished radio contact with Mission Control. Also depicted is the path of the free return trajectory around the Moon, and a continuous view of the Moon throughout that path.
Ken Mattingly, astronaut who helped Apollo 13 crew return safely home, dies at age 87. ROBERT JABLON. November 3, 2023 at 11:57 PM ... Apollo 13's story was told in the 1994 book “Lost Moon: The ...
A simple lunar trajectory stays in one plane, resulting in lunar flyby or orbit within a small range of inclination to the Moon's equator. This also permits a "free return", in which the spacecraft would return to the appropriate position for reentry into the Earth's atmosphere if it were not injected into lunar orbit.
Apollo 13 S-IVB stage: Impacted the Moon: 15 April: Apollo 13: Lunar flyby at 254 kilometres (158 mi) Intended lunar landing, forced to abort and return to Earth using lunar free return trajectory: 20 September: Luna 16: 100gm from Mare Fecunditatis: First sample return mission: 24 October: Zond 8: Circumlunar flight of the Moon 1,110 ...