Free planetarium

 
User avatar
Dr. Kaii
Space Pilot
Space Pilot
Topic Author
Posts: 129
Joined: 26 Nov 2016
Location: Manchester England
Contact:

Stellar density doesn't change in IC 1101

04 Apr 2017 01:55

Hi,

I was just wondering what's going on with the stellar density in the center of the largest galaxy, IC 1101? As a comparison, if you go to the core of the Milky Way, there are about 450 stars within a 10ly radius sphere around you (not including the Kern in the center - measured using the search function, set to 10ly). I would have expected that the very core of the largest galaxy in the game would have a mad density of stars, somewhere over 10,000 in the same volume, but it's much much much more sparse there. There's less than 3 stars in every 10ly radius sphere!

And it's not because it is elliptical - go to another elliptical galaxy and you'll find 700 stars in that volume in the core. I would very much like to know why it is like that. 

In fact, to be precise, the stellar density seems to be completely uniform throughout the entire galaxy. I assume this is because it is a non-procedural galaxy. 

Does anyone know how to make a mod that would make this more realistic?
i7 7700K - 4.7MHz, Inno3D GeForce GTX 1080 HerculeZ Twin X2 8192MB, 32GB DDR4 3000MHz, CV1 + Oculus Touch
 
User avatar
Xoran
Pioneer
Pioneer
Posts: 378
Joined: 17 Jan 2017
Location: Copenhagen, Denmark

Stellar density doesn't change in IC 1101

04 Apr 2017 04:40

Dr. Kaii wrote:
Source of the post In fact, to be precise, the stellar density seems to be completely uniform throughout the entire galaxy. I assume this is because it is a non-procedural galaxy.

I think it is because IC 1101 is so huge that simulating an accurate number of stars in the galaxy is impossible or something like that :)
Space is too big to understand, so do not try to understand.
 
User avatar
Dr. Kaii
Space Pilot
Space Pilot
Topic Author
Posts: 129
Joined: 26 Nov 2016
Location: Manchester England
Contact:

Stellar density doesn't change in IC 1101

04 Apr 2017 04:51

Highly doubt that ^
i7 7700K - 4.7MHz, Inno3D GeForce GTX 1080 HerculeZ Twin X2 8192MB, 32GB DDR4 3000MHz, CV1 + Oculus Touch
 
User avatar
SpaceEngineer
Author of SpaceEngine
Author of SpaceEngine
Posts: 457
Joined: 17 May 2016
Location: Saint-Petersburg
Contact:

Stellar density doesn't change in IC 1101

04 Apr 2017 11:43

Xoran is right. SE has a limit of number of stars per octree quad, and limit of an octree recursion depth. All this leads to limited star density in a very large galaxies.
 
User avatar
Dr. Kaii
Space Pilot
Space Pilot
Topic Author
Posts: 129
Joined: 26 Nov 2016
Location: Manchester England
Contact:

Stellar density doesn't change in IC 1101

04 Apr 2017 11:59

Ok fine. Is that a permanent limit or do you intend to change it? Is there any way to get around it? Does IC 1101 really have 150 trillion stars?
i7 7700K - 4.7MHz, Inno3D GeForce GTX 1080 HerculeZ Twin X2 8192MB, 32GB DDR4 3000MHz, CV1 + Oculus Touch
 
User avatar
ARBB
Astronaut
Astronaut
Posts: 65
Joined: 04 Aug 2016
Location: Doom.
Contact:

Stellar density doesn't change in IC 1101

23 Jun 2017 18:46

SpaceEngineer wrote:
Source of the post Xoran is right. SE has a limit of number of stars per octree quad, and limit of an octree recursion depth. All this leads to limited star density in a very large galaxies.

 Adding more precision to the calculation, or implementing some a k-d tree mechanism wouldn't fix that issue? Or just fixing the optimization of the current algorithm, therefore the model could feasibly put more stars in an area?
S M OO T H RºCªMBºLºNE

Who is online

Users browsing this forum: No registered users and 2 guests