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... is it even possible for black holes to orbit one another ...
is it even possible for black holes to orbit one another?
2. That these could be black holes (instead of stars) that are orbiting a common center of mass?
1. We could expand this out to 8?
they would be moving tremendously fast
they would all be unstable, erratic orbital paths
calculated what the path of these 8 black holes is at any given time, and thus is the only one that can figure out a safe way...
besides the fact they can't be seen by any other means except by looking for Hawking radiation...
Or gravitational lensing. Or accretion disks. Or scattering from the photon sphere. Hawking radiation might be the only radiation coming directly from the Event Horizon but there are many other ways in which something approximating the outline of the Event Horizon can be observed. I mean heck if you get close enough you could potentially see it transiting stars though again you'd have to account for the gravitational lensing effect.
Those things require special conditions. I'm referring to how a black hole can be seen under all circumstances and at all times.
You're not making the very important distinction between "seeing" a black hole and "detecting" a black hole.
besides the fact they can't be seen by any other means except by looking for Hawking radiation,
the difference between "see" and "detect"
The problem with an anti gravity field is limiting the extent so that it does not cancel the external gravitational field and therefore nullify the sling shot effect.
you can actually lose energy
planets are not points and you can only get so close to their centers