question about planets/shardworlds

[kaladin x happiness Spearman]

are all the planets (like scadrial, roshar, uhh the elantris one, the warbreaker one) are they all orbiting the same sun?? or is it like, in the cosmere there are like 6 suns and separate solar systems or something and each has a random amnt of planets but the sahrdworls are scattered between them?

[Invocation Mistborn]

The cosmere as a whole is a star cluster. 50-100 stars ish.

Quote

Questioner

Is there a center to the cosmere?

Brandon Sanderson

There isn't a center in the cosmere... I keep calling it a dwarf galaxy but I think they decided it's a cluster, instead of a dwarf galaxy.

Overlord Jebus

Even a dwarf galaxy is still really big.

Brandon Sanderson

Yeah, still too big. So we had to call it a cluster. Because we only wanted like what, we came up with 50 or 100 stars? So it's a cluster. Or a really dwarf galaxy.

Emerald City Comic Con 2018 (March 1, 2018)

Anything happening outside that cluster is going to be left unexplored since it is beyond the scope of the cosmere, so whether there are other Adonalsium-level beings out there will probably remain unknown.
If you have a copy of Arcanum Unbounded, there are star charts for each of the individual star systems in there, even if they're not completely accurate.

Edited May 19 by Invocation

[Nameless Mistborn]

9 minutes ago, kaladin x happiness said:

are all the planets (like scadrial, roshar, uhh the elantris one, the warbreaker one) are they all orbiting the same sun?? or is it like, in the cosmere there are like 6 suns and separate solar systems or something and each has a random amnt of planets but the sahrdworls are scattered between them?

There are actually way more than six separate solar systems, and each planet is in a different one. (Aside from planets like Ashyn, which are explicitly stated to be in the same solar system).

[Stormblessed0421 Grand]

2 things:

1. There are definitely more than one solar system in the Cosmere. The books are each set in different ones, and there’s countless stars we don’t know about yet.

2. If every shard lived in the same system, the Cosmere would be a whole lot more chaotic and the spiritual realm would be messed up. 

[Invocation Mistborn]

1 hour ago, Stormblessed0421 said:

2. If every shard lived in the same system, the Cosmere would be a whole lot more chaotic and the spiritual realm would be messed up. 

I kind of want to see how that would go now haha

[kaladin x happiness Spearman]

Thank you everyoone!!