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muriel_volestrangler

(105,793 posts)
17. It is complicated, but if Google doesn't get you there, try Wikipedia
Thu Nov 17, 2022, 09:22 AM
Nov 2022

because there's almost certainly been some editors who asked the same questions.

Artemis 2 will have a different trajectory ("free return" - a bit more like the Apollo 13 one (once round the back of the Moon and then home), but it will still take about 4 days to get there, and also has an elliptical Earth orbit before it (saves a bit of fuel, I think - it's more efficient to accelerate at low altitude, so can be worth doing 2 burns at low altitude, rather than 1 longer one - the Indians used 5 orbits to gradually raise their Moon probe: https://en.wikipedia.org/wiki/Chandrayaan-2#Geocentric_phase ):


https://en.wikipedia.org/wiki/Artemis_2

Artemis 3, which will land on the Moon, involves using a 'halo' orbit round the Moon, so is different again - I can't see how long it is expected to take to get there: https://en.wikipedia.org/wiki/Artemis_3

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Probably a fuel savings and training for the future... Wounded Bear Nov 2022 #1
I realize the fuel savings, but if you're trying to emulate what future missions will be like... Silent3 Nov 2022 #3
This is the uncrewed mission... Wounded Bear Nov 2022 #5
They want to test the ship's performance in lunar orbit more than anything else. Gore1FL Nov 2022 #6
They took the scenic route. FraDon Nov 2022 #2
Maybe navigating between all of the satellites up there now? nt AZSkiffyGeek Nov 2022 #8
I can't speak to Artemis I Gore1FL Nov 2022 #4
There refused to stop and ask for directions unblock Nov 2022 #7
they couldn't read the map and got lost DBoon Nov 2022 #9
They are using a elliptical entrance to a much higher parking orbit. yourout Nov 2022 #10
Usually we figure that the flight path is closely timed. keithbvadu2 Nov 2022 #14
And this Distant Retrograde Orbit is a bit like the one planned for the Lunar Gateway muriel_volestrangler Nov 2022 #16
Apollo carried humans FBaggins Nov 2022 #11
They can only travel at the speed of Star Trek. GreenWave Nov 2022 #12
Differences in life support trade-offs? JHB Nov 2022 #13
Apollo used the biggest, most powerful rocket ever launched into space (Saturn V). Angleae Nov 2022 #15
The SLS is 15% more powerful than the Saturn V at take-off muriel_volestrangler Nov 2022 #18
It is complicated, but if Google doesn't get you there, try Wikipedia muriel_volestrangler Nov 2022 #17
Latest Discussions»Culture Forums»Science»Artemis question: Why six...»Reply #17