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06/17/2019 – Ephemeris – President Kennedy wanted to get us to the Moon… But how?

17 Jun 2019, 04:01 UTC
06/17/2019 – Ephemeris – President Kennedy wanted to get us to the Moon… But how?
(200 words excerpt, click title or image to see full post)

Ephemeris for Monday, June 17th. Today the Sun will be up for 15 hours and 34 minutes, setting at 9:30, and it will rise tomorrow at 5:56. The Moon, at full today, will rise at 9:56 this evening.
President Kennedy’s Challenge to land “a man on the Moon and returning him safely to the Earth” came only 20 days after Alan Shepard’s sub-orbital flight and 45 days after Yuri Gagarin’s orbital flight. To the NASA designers the question was how! Three scenarios were studied. The Moon direct approach where the spacecraft would be sent intact to the Moon and back which would take a really gigantic rocket. The Earth rendezvous where the spacecraft would be assembled in Earth orbit and then sent to the Moon. And the lunar orbit rendezvous where only part of the craft would be sent down to the lunar surface, while the main craft stayed in orbit of the Moon. After a lot of study the third option was accepted. It was up to project Gemini to develop the skills necessary to rendezvous and dock two spacecraft in orbit.
The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your ...

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