More exact coordinate:

Maia - Chi Orionis center line: -38 / -75/ -185
S171 34: -2,426.84375 / 295.03125 / -1,323.625

approx 890ly from center line directly towards S171 34:
2389/370/1139=SR(7141542)=2672ly-890=1782ly...
123^2+796^2+380^2=SR(793145)=890.... 8\

Wrong maths^:

-38+-796=-834; -75+123=48; -185+-380=-565

So: -834 / 48 / -565

Could have made mistakes though. But this may be generally the location.
 
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More exact coordinate:

Maia - Chi Orionis center line: -38 / -75/ -185
S171 34: -2,426.84375 / 295.03125 / -1,323.625

approx 890ly from center line directly towards S171 34:
2389/370/1139=SR(7141542)=2672ly-890=1782ly...
123^2+796^2+380^2=SR(793145)=890.... 8\

Wrong maths^:

-38+-796=-834; -75+123=48; -185+-380=-565

So: -834 / 48 / -565

Could have made mistakes though. But this may be generally the location.
And that is where
 
I did some rounding on the calculations so there is some wiggle room. There are also some interesting stars like the Wredguia PS-U E2-# sequence of stars that seem to all be blue. Several of which are actually HIP #### stars. Plus the Wredguia CV-G C10-# star cluster is also right nearby it. I was correct about the general location before. 8)

Thinking about it. there are also odd places like the system with Josia Rosa. It's the 8th planet from a double black hole. And there is a weird set of planets around a sun around the 8th sun the main star there. HIP 63835, but I'm sure it's been explored to death. Also firsoff orbital that is around the technical 8th moon. But, again, explored to death.
 
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I did some rounding on the calculations so there is some wiggle room. There are also some interesting stars like the Wredguia PS-U E2-# sequence of stars that seem to all be blue. Several of which are actually HIP #### stars. Plus the Wredguia CV-G C10-# star cluster is also right nearby it. I was correct about the general location before. 8)

Thinking about it. there are also odd places like the system with Josia Rosa. It's the 8th planet from a double black hole. And there is a weird set of planets around a sun around the 8th sun the main star there. HIP 63835, but I'm sure it's been explored to death. Also firsoff orbital that is around the technical 8th moon. But, again, explored to death.
Did you try to find "mass center" or "equal remote from each point" ?
1st is
const auto summ {A+B+C};
const Point M{summ.x / 3.f, summ.y/3.f, summ.z/3.f};
2nd is center of outer circle or intercection of mid perpendiculars ...

also there is "center of inner circle" to check which will be equal distance to each route between each star's pair (triangle sides):

const float a = B.vectorTo(C).len();
const float b = A.vectorTo(C).len();
const float c = A.vectorTo(B).len();
const float summ = a + b + c;

const float x = (a * A.x + b * B.x + c * C.x) / summ;
const float y = (a * A.y + b * B.y + c * C.y) / summ;
const float z = (a * A.z + b * B.z + c * C.z) / summ;
 
I did based on coordinates. I have no idea how to figure out mass. I was using very low end math without sin or cos stuff. I figured out based on a cube/rectangle and then figured out the other directions and adjusted from the starting location.

You can use ED coordinates to do SquareRoot(|A1 + A2|^2 + |B1+B2|^2 + |C1+C2|^2). This gets the distance of the hypotenuse between the two targets. then I figured other angles out with Pythagoras theorem. In this case I cheated and assumed a right angle in the end and used the 1/3 2/3 ratio for a center mark to cheat and get the distance and then assume the same 1/3 of all distances from the cetner of Maia and Chi Orionis to get the +890ly coordinates. So, it's a little rounded and shortcuted. But it's fairly accurate. I think.
 
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I did based on coordinates. I have no idea how to figure out mass. I was using very low end math without sin or cos stuff. I figured out based on a cube/rectangle and then figured out the other directions and adjusted from the starting location.

Me too :D that's why no code there ....but I did brute force, i.e. stepping x/y/z in cube limited by stars and testign distances. This system has 0.01 error to exact equal distance to all stars:

Even better:

https://www.edsm.net/api-v1/sphere-systems?x=1389.2188&y=-323.4375&z=-458.6250&radius=20; max error: 0.00524902
https://www.edsm.net/api-v1/sphere-systems?x=1176.2188&y=329.5625&z=-707.6250&radius=20; max error: 0.0101318
https://www.edsm.net/api-v1/sphere-systems?x=1040.2188&y=746.5625&z=-866.6250&radius=20; max error: 0.0117188

1st match exactly basically
 
So, I guess the next thing is is there a best set of systems to represent the poem. Assuming that is even what those things mean to start with. I like the idea of it being based on tourist beacons. Those have info that can be easily attached to the poem.

Is there a way to find the center of mass of the galaxy or for a sector. Or is Sag A the center of mass?
 
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I think the col 132 and wregeo stuff is in the wrong direction. Is there a messed up negative or positive? I might be missing how the calculation is supposed to work though. Is it for the same thing I was doing?
 
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I think the col 132 stuff is in the wrong direction. Did you mess up a negative and positive? I might be missing how the calculation is supposed to work though. Is it for the same thing I was doing?
No guarantees :D Everybody do error ... but it must step from min x to max x amount 3 points, then y, then z with some small step. At each new combination x/y/z it calculates distance to a/b/c. This system has 3 distances differ at max 0.005.
And if you click it, edsm responds "bodies null" this means - it was visited but never scanned :D Fits what FDevs said - "just scooped" :D
 
The systems are the same but in the opposite direction from between the star systems. Like if you rotated it towards east instead of west. I might be misunderstanding the point of the calculations.

I didn't know you could look that up in EDSM. That could be interesting. I'm horrible at figuring that stuff out though.

This system
https://www.edsm.net/api-v1/sphere-systems?x=1389.2188&y=-323.4375&z=-458.6250&radius=20; max error: 0.00524902

has distance error less then map can show, I guess it is center - equaly remote from 3 stars u mentioned
const static Point A{4.3125, -1.0625, -27.90625};
const static Point B{ -81.78125, -149.4375, -343.375};
const static Point C{*(-)2426.84375, 295.03125, -1323.625};

Found the problem. 2426.845375 should be negative. There was an error in the original coordinates.
 
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The systems are the same but in the opposite direction from between the star systems. Like if you rotated it towards east instead of west. I might be misunderstanding the point of the calculations.

I didn't nkow you could look that up in EDSM. That could be interesting. I'm horrible at figuring that stuff out though.

Well, actually there are infinite number of points which are equal remote from triangle vertexes in 3D ... and they're laying all on 1 line which is perpendicual to plain of triangle and this line goes through the center of circumscribed circle. So yeh can be not exactly where u expected ... that's why I stopped to play with this, solving plain equations and picking exact point in plain is too much for me too :D have been 20+ years since I did it.
 
I think you are doing it correctly but it's doing it with the one coordinate with a possitive putting in the wrong direction. The rest is correct.

It took me a bit to find the error. I corrected it in the above post. I edit alot so stuff I type gets delayed in appearing sometimes. 8)

I thought you changed it to find a different type of coordinate at first.
 
I think you are doing it correctly but it's doing it with the one coordinate with a possitive putting in the wrong direction. The rest is correct.

It took me a bit to find the error. I corrected it in the above post. I edit alot so stuff I type gets delayed in appearing sometimes. 8)
Okey, new coords:
const static Point A{4.3125, -1.0625, -27.90625};
const static Point B{ -81.78125, -149.4375, -343.375};
const static Point C{-2426.84375, 295.03125, -1323.625};

Hmm..even more good matches:

https://www.edsm.net/api-v1/sphere-systems?x=-1798.8438&y=-191.4375&z=349.3750&radius=20; max error: 0.00378418
https://www.edsm.net/api-v1/sphere-systems?x=-1781.8438&y=-152.4375&z=326.3750&radius=20; max error: 0.0090332
https://www.edsm.net/api-v1/sphere-systems?x=-1835.8438&y=-276.4375&z=399.3750&radius=20; max error: 0.0117188
https://www.edsm.net/api-v1/sphere-systems?x=-1818.8438&y=-237.4375&z=376.3750&radius=20; max error: 0.0119629
https://www.edsm.net/api-v1/sphere-systems?x=-1815.8438&y=-230.4375&z=372.3750&radius=20; max error: 0.0126953
https://www.edsm.net/api-v1/sphere-systems?x=-1761.8438&y=-106.4375&z=299.3750&radius=20; max error: 0.0170898
https://www.edsm.net/api-v1/sphere-systems?x=-1801.8438&y=-198.4375&z=353.3750&radius=20; max error: 0.0181885
https://www.edsm.net/api-v1/sphere-systems?x=-1852.8438&y=-315.4375&z=422.3750&radius=20; max error: 0.0186768
https://www.edsm.net/api-v1/sphere-systems?x=-1764.8438&y=-113.4375&z=303.3750&radius=20; max error: 0.019165

Pick responses by "distance", lower "distance" is close to calculated point, or ser radius=10 in link to filter.
 
I think your inputs are using a positive on the 343.375 instead of a negative on the middle corrdinate somehow even though it says it's negative. Your answers are all coming out in the positive spectrum and on Positive 350 range on the galmap.

I think that is the last error.
 
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