L5

With regard to L5 as a good location for locating a habitat, how much
energy is required to get material from the moon (or lunar orbit) to
L5? Why go to L5 anyway? Why wouldn't lunar orbit (perhaps a polar
orbit) provide all benefits of L5 while being closer to the source of
materials?

>
> Right, Kent. Exactly.
>
> It's sticky space.
>
> If the ISS was there we wouldn't have to keep boosting it back up
> every six months or so. It would stay there.
>
> But we need to factor everything in to see if there's a real cost
> savings and of course we have to be capable of doing it in the first
> place.
>
> > Orbital Mechanics is not my strong suit, but my understanding is
> that it is
> > not orbit you want to achieve at L5. With earth/moon gravity
> canceling each
> > other out, L5 becomes very stable for objects placed there. Exiting
> L5 takes
> > very little Delta-V.
> >
> > Kent
> >
> > > OK, I'll bite. Exactly how do you get to L5 and get into orbit
> > > there? Can you leave LEO with just enough Delta-V that you coast
> into
> > > a cozy little kidney-bean-shaped orbit, or do you need as big a
> burn
> > > once you get there as you neede to get out of LEO?
> > >
> > > I'd imagine that L5 can't be that bad a place, else it wouldn't've
>
> > > been proposed in the first place.
> > >
education

History of space My first Space exploration