You said the halo of a galaxy contains globular structures which are older clusters of stars. What would the main differences be in these clusters compared to newer clusters of stars?
So I understand how we classify spiral galaxies by how tightly their arms are wound, but do we know why they are different tightnesses?
You said the halo of a galaxy contains globular structures which are older clusters of stars. What would the main differences be in these clusters compared to newer clusters of stars?
ReplyDeleteSo I understand how we classify spiral galaxies by how tightly their arms are wound, but do we know why they are different tightnesses?
ReplyDelete