Excluding the Paradise-Havona spheres, the plan of universe organization provides for the following units:

Superuniverses   7 Major sectors   70 Minor sectors   7,000 Local universes   700,000 Constellations   70,000,000 Local systems   7,000,000,000 Inhabitable planets   7,000,000,000,000

Each of the seven superuniverses is constituted, approximately, as follows:

All such estimates are approximations at best, for new systems are constantly evolving while other organizations are temporarily passing out of material existence.

Practically all of the starry realms visible to the naked eye on Urantia belong to the seventh section of the grand universe, the superuniverse of Orvonton. The vast Milky Way starry system represents the central nucleus of Orvonton, being largely beyond the borders of your local universe. This great aggregation of suns, dark islands of space, double stars, globular clusters, star clouds, spiral and other nebulae, together with myriads of individual planets, forms a watchlike, elongated-circular grouping of about one seventh of the inhabited evolutionary universes.

From the astronomical position of Urantia, as you look through the cross section of near-by systems to the great Milky Way, you observe that the spheres of Orvonton are traveling in a vast elongated plane, the breadth being far greater than the thickness and the length far greater than the breadth.

Observation of the so-called Milky Way discloses the comparative increase in Orvonton stellar density when the heavens are viewed in one direction, while on either side the density diminishes; the number of stars and other spheres decreases away from the chief plane of our material superuniverse. When the angle of observation is propitious, gazing through the main body of this realm of maximum density, you are looking toward the residential universe and the center of all things.

Of the ten major divisions of Orvonton, eight have been roughly identified by Urantian astronomers. The other two are difficult of separate recognition because you are obliged to view these phenomena from the inside. If you could look upon the superuniverse of Orvonton from a position far distant in space, you would immediately recognize the ten major sectors of the seventh galaxy.