Different vSphere license in 1 vCenter

1. We have the following items purchased for our coming project.

vSphere with operation management standard for 1 processor x 6 (3 hosts)

vSphere with operation management enterprise for 1 processor x 6 (3 hosts)

vCenter server 5 standard for vSphere 5 x 1

2. My question is 2 different vSphere license can be manage under single vCenter server?

or we should purchase another vCenter server license?

Thanks.