Galactic rotation

[Vicktore Beskor]

Hello commanders
Dose anyone know if galactic rotation is modeled in the game??? I ask because if it is would not the core of the Galaxy spin faster than the edge.

 

[The Tick]

No, unfortunately not. The x/y/z coords for every system are fixed.

 

[Vicktore Beskor]

To bad because if it was then traveling across the galaxy would be a little more interesting now my next question is it something they could add to the game???

 

[Bambi]

It would take thousands of years to make any difference, so there really isn't much of a point.

 

[Vicktore Beskor]

Wouldn't systems near the core move faster and if they did wouldn't traveling through the cord would be different each time you would go through?

 

[Muetdhiver]

Wouldn't systems near the core move faster and if they did wouldn't traveling through the cord would be different each time you would go through?

^^ That is a good question indeed :

Normally, one would expect indeed faster rotation near the core, and have it go slower as you move away*. (calculating it from the known visible matter (i.e. stars) distribution)
However, this is not what has been seen (-> measured). The velocity profile is in fact almost flat. This is generaly considered as one of the "clue" for the existance of
large amount of dark matter. (Or, modification of the law of gravity at large scale).

*Though, at very small radius (i.e. really close to the core), the radial velocity is nearly zero, then rises sharply to a max, and then should go down, but does not.

Also, the radial velocity is only ~100km/s. While it may seem a lot to us poor humans, at the scale considered it is indeed peanuts. After 10yrs, that would amount to 1/300 lyr.

 

[Noogillim]

The milky way rotates once in about every 225-250 million years

Maybe if the game lasts longer than 10 years we'll have some evidence of the external objects shifting a tiny bit?

6.510416666666E−13 degrees per second obviously more distant objects would appear to move greater than close objects

 

[MassiveD]

The milky way rotates once in about every 225-250 million years

Maybe if the game lasts longer than 10 years we'll have some evidence of the external objects shifting a tiny bit?

I think your signature sums it up neatly ^^

 

[Bobbydylan]

Wouldn't systems near the core move faster and if they did wouldn't traveling through the cord would be different each time you would go through?

I'm not actually sure that's correct. I'm no astronomer, but I recall that the speed of the outer rim systems is surprisingly fast*, and in fact infers the existence of dark matter. Without dark matter, those outer systems should fly off into deep space.

*fast on a cosmological scale, but still really really slow when judged with human senses.

 

[Monk]

For a thargoid, I'd imagine it matters. For us humans, the little wisps of nothing that we are, none of it would even register by an appreciable amount.

 

[shreddog]

Rotating 400 billions stars in realtime. Wouldn't this be insanely hard to do? And what would be the point with the large distances, you wouldn't see any change whatsoever. Unless.. They calculated the rotation based on your position in the galaxy and what is observable based on the speed of light. So if you travel 20k ly towards the core you would see a tiny change in star positions. As example, you turned back and looked at Sol its position would be where it was 20 thousand years ago.

Yeah.. not something they're going to implement anytime soon I think.

 

[govny]

Wouldn't systems near the core move faster and if they did wouldn't traveling through the cord would be different each time you would go through?

yes and no.
To see some differences you would need to wait at least some hundreds of years. It would be a pointless feature.
A complete rotation takes about 250 milions years.

 

[Mark Lock]

Hello commanders
Dose anyone know if galactic rotation is modeled in the game??? I ask because if it is would not the core of the Galaxy spin faster than the edge.

No it's not, it would be useless and would cause several problems if the galaxy was actually moving and every system would orbit around the core changing its distance from nearby systems all the time, it would be a mess and a waste of computational power to simulate, however systems are completely simulated including planets' orbits, inclination and distance from the star, masses etc...

 

[Leo Sagan]

astronomy nerds in action.
Watch and learn FD, watch and learn

 

[evoelise]

It takes over 200 million years for the Milky Way galaxy to complete one revolution.

FD may have patched it into the game by then - hell they may even have fixed some of the bugs in Wings by then...

 

[PhanttoM]

astronomy nerds in action.
Watch and learn FD, watch and learn

David Braben is an astronomy nerd himself, I'm pretty sure it's more of a case of: "Does this add anything to gameplay" rather than needing to "watch and learn".

 

[xondk]

Hello commanders
Dose anyone know if galactic rotation is modeled in the game??? I ask because if it is would not the core of the Galaxy spin faster than the edge.

No, unfortunately not. The x/y/z coords for every system are fixed.

To bad because if it was then traveling across the galaxy would be a little more interesting now my next question is it something they could add to the game???

There is plenty of time to add this, it is a very little change though for human eyes, same with planet rotations around stars, which does happen, but again the rotation is so slow to human eyes, I totally understand we want to be able to see change, and I really hope that some day the orrey system map will work, or a way to view it separately? to allow people to get a better scale of the whole thing

No it's not, it would be useless and would cause several problems if the galaxy was actually moving and every system would orbit around the core changing its distance from nearby systems all the time, it would be a mess and a waste of computational power to simulate, however systems are completely simulated including planets' orbits, inclination and distance from the star, masses etc...

Not as such, especially with the speed it is at, and remember, the x y z coordinates do, as such not need to actually move, the rotation can be done almost purely cosmetically, given any fixed point to look at, and that is another thing, we have no fixed point to see the rotation 'from' so how would we even see if we'd rotated? the star's locations are on galaxy scale rather static.

Edit: only way we would really know is the background image, to the galaxy map, that shows some other galaxies would rotate, but that's really it.

 

[shadragon]

Hello commanders
Dose anyone know if galactic rotation is modeled in the game??? I ask because if it is would not the core of the Galaxy spin faster than the edge.

There is no supercomputer in existence that could model galactic rotation in real time.

 

[frostypaw]

This is the thing to watch https://youtu.be/yiv6a8BVzPE?list=PLC9FC5F6773B383D5&t=97

 

[3instein]

Isn't it the case that the stars at the core move at the same speed as the ones at the outer edge due to dark matter? This is how dark matter was confirmed?

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

Mick.