What do the * mean in the output of DNU List?

Question

When I run DNU List I see the following output:

What do the asterisks (highlighted in pink) mean?

The version of DNU I'm using is:

Microsoft .NET Development Utility  
Version:      1.0.0-rc1-16231  
Type:         Clr  
Architecture: x86  
OS Name:      Windows  
OS Version:   10.0  
Runtime Id:   win10-x86

Answer 1

Found out:

* means direct dependency.

Which I think means that the dependency is listed in the project.json directly.