What star system is at the center of core space?

shadragon

shadragon
Easy question. Thought I'd throw it out there.

Which star system is at the center of civilized space?
 
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goemon

goemon
it's a very interesting question, and the first question would be, what kind of centerpoint are we looking for?

a) purely minimal distance to all inhabited systems?
b) äquidistance to the most remote inhabited systems like quince, new yembo, sothis?
c) some kind of "center" depending on population of different systems?

for sure the bubble isn't a bubble, but more of an elliptoid with two centers (sol/alioth - achenar), roughly going -/+200, -/+100, -/+250.

probably people hosting the data of http://www.edsm.net/ might answer this question (a+b)

my guestimate would be Gwaelod or that region of space.
 

shadragon

shadragon
Yes goemon, you hit the proverbial nail. What location exists which (roughly) had equal travel time from one side of the bubble to the other. Strikes me that this would be a logical location for someone who did a lot of CG's, as I do.

Depending on which character I use, I'm in Alliance or Empire space and some of the CG's can be quite a haul away. I'm looking to cut down on travel time by locating myself centrally.

Cheers.
 

goemon

goemon
shadragon said:
Yes goemon, you hit the proverbial nail. What location exists which (roughly) had equal travel time from one side of the bubble to the other. Strikes me that this would be a logical location for someone who did a lot of CG's, as I do.

Depending on which character I use, I'm in Alliance or Empire space and some of the CG's can be quite a haul away. I'm looking to cut down on travel time by locating myself centrally.

Cheers.
Click to expand...

i answered the same question for me with toolfa OR - li yong rui space, and if you don't mind a 1000 ls travel - LHS 20. it's in the middle between a route from alitoh to achenar.
 

Sapyx

Sapyx
I estimate the extremities of the Bubble proper (not counting the remote outback planets like Sothis and Maia) being:

North pole: Pand (-10,-3, +208)
South pole: Maruda (-10, -14, -185)
East pole: Sabi (+174, 32, 23)
West Pole: Mechelkanu (-211, 21, -11)
Up pole: Gleise 460 (+17, +208, -17)
Down pole: Kilique (+90 -265 +7)

The arithmetical mean of these co-ordinates is (+8 -3 +4), which is actually pretty darn close to Sol. The nearest star to that point is WISE 0855-0714, though a better "Central Base" would be Epsilon Indi or (for the Hutton Truckers and other masochists with small/medium ships) Alpha Centauri.
 

Kitty

Kitty
Isn't there a massive black hole at the centre of our galaxy? I remember somebody saying that in a BBC documentary some time ago. If that were the case then you could search for the centre by using black holes ?
 

goemon

goemon
Kitty said:
Isn't there a massive black hole at the centre of our galaxy? I remember somebody saying that in a BBC documentary some time ago. If that were the case then you could search for the centre by using black holes ?
Click to expand...

it is, and its name is sagittarius a* - and it even has a visitor list on these forums! https://forums.frontier.co.uk/showthread.php?t=98529

OP was asking for the center of inhabited space. if we take all the gasplanets with water-based lifeforms (or any other) into this, you'll be probably right.
 

Grus

G
Sandro Sammarco said:
Hello Commanders!

Clearly at the centre of *all* space, civilised, uninhabited, Euclidian and otherwise (all at the same time), is the system known as the nuclear chaos, blind idiot god, Azathoth.

Just don't tell anyone.

And for goodness sake *don't* try to visit it.
Click to expand...

Ah-hah! My next destination!



*Plotting course for Azathoth

...
...
-Fried chips drive engaged-
 
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Athan

Athan
I once looked into this, around July 2015 by the looks of the datestamp on the script. Using the list of inhabited systems that FD gave us in Gamma I calculated the centre of mass to be around HIP 36051 at -250 : 240 :-380 . Sadly I can't re-run the script to be 100% sure as I've changed my database schema since and it no longer has the 'commandercreate' column in it I used to pick out just the inhabited systems FD supplied us with.

Keep in mind this was done as:

1) Select all FD supplied systems, essentially in a random order
2) Now iterate through moving half way towards the next each time

I guess I can see if I can re-instate that old column and re-run it to be sure.

Edit: OK, I've munged that column back in, and actually the co-ords it spits out are 92.34243 : -69.56356 : 11.41557 . Some quick queries show these as the closest systems (known to EDSM, and thus my DB, which is the one I use for my route planner in my signature) as:

Code: 
  id   |     name      |    x     |     y     |    z     | tgc_id |     updatedate      | permit | commandercreate
-------+---------------+----------+-----------+----------+--------+---------------------+--------+-----------------
  2796 | Thanatos      | 80.59375 | -74.28125 | 12.40625 |  14711 | 2015-05-12 15:29:33 |        | FD
  7507 | Yab Cameni    |  99.4375 | -73.53125 |  12.6875 |   1616 | 2015-05-12 15:29:33 |        | FD
 36710 | ICZ BV-X b1-2 | 95.28125 | -69.96875 |  9.53125 | 120152 | 2015-11-07 20:47:46 |        |

So that last one is literally closest, but it's a toss up between the other two as to which is the closest to centre-of-mass of the inhabited ones.
 
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Athan

Athan
If anyone has a suggestion for a better "centre-of-mass" algorithm I'm all ears. It's literally just:

Code: 
my ($x, $y, $z) = (0.0, 0.0, 0.0);
foreach my $s (keys(%${fd_stars})) {
#  print Dumper($fd_stars->{$s});
        $x += ($fd_stars->{$s}{'x'} - $x) / 2;
        $y += ($fd_stars->{$s}{'y'} - $y) / 2;
        $z += ($fd_stars->{$s}{'z'} - $z) / 2;
}
printf "%10.5f : %10.5f : %10.5f\n", $x, $y, $z;
(yes, that's perl) that I used.

Oh, and as I mentioned, essentially random order for going through the stars. In fact if I change from no ordering on the SQL statement to ordering by various columns, the answer hardly changes at all.

Also. I seem to recall when I looked a little closer... there are some outliers on the inhabited systems that could skew this centre off to one side a bit. So if the position of those systems looks a little off for this question, that could be why.
 
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CMDR Zadian Lichtfrost

C
Sandro Sammarco said:
Hello Commanders!

Clearly at the centre of *all* space, civilised, uninhabited, Euclidian and otherwise (all at the same time), is the system known as the nuclear chaos, blind idiot god, Azathoth.

Just don't tell anyone.

And for goodness sake *don't* try to visit it.
Click to expand...

Now I fear that on my next exploration I might accidentally jump into a system and find an unspeakable, monstrous thing instead of a sun.
My last thought would be "Oh, **** I found an Old One" while I go completely insane before the FSD cools down.

Great.
 

MartinG

M
Athan said:
If anyone has a suggestion for a better "centre-of-mass" algorithm I'm all ears.
Click to expand...

If you want to calculate the centre of mass, just do it…
Code: 
my ($x, $y, $z) = (0.0, 0.0, 0.0);
foreach my $s (keys(%${fd_stars})) {
        $x += $fd_stars->{$s}{'x'};
        $y += $fd_stars->{$s}{'y'};
        $z += $fd_stars->{$s}{'z'};
}
my $n = scalar(keys(%${fd_stars}));
printf "%10.5f : %10.5f : %10.5f\n", $x/$n, $y/$n, $z/$n;
(This actually calculates geometric centre, which is the same as centre of mass if we assign the same mass to each object. See Center of mass § A system of particles, and note that if you take m[SUB]i[/SUB] = 1 for every i, then M = n and the formula is the same as Centroid § Of a finite set of points.)
 
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CMDR Argent Steel

CMDR Argent Steel
Sandro Sammarco said:
Hello Commanders!

Clearly at the centre of *all* space, civilised, uninhabited, Euclidian and otherwise (all at the same time), is the system known as the nuclear chaos, blind idiot god, Azathoth.

Just don't tell anyone.

And for goodness sake *don't* try to visit it.
Click to expand...

Supposedly the star Algol was a home to the elder gods. It's one of the first places I visited for that reason. Imagine my disappointment. :(
 
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