It has a center hole for a Cassegrain telescope. It also has a thicker facesheet and a heavier core construction. The weight has now increased to 12 lbs. It is shown below being held by sisters Hannah and Sarah Keyes. A third anonymous person is holding our cat Henry looking through the center hole.
Henry is two years old.
He weighs 17 lbs. We are in the process of building the rest of the telescope. The truss structure shown below is made of graphite composite material. It weighs 6.5 lbs. Shown beside for scale is Heather Chen and her cat Henry.