Two Orbs.
Sun & Moon.

The word Orb comes from the Latin word Orbem or Orbis—
Meaning Circle, Disk, Ring, Hoop.

Also meaning Orbit—like on a wheel or track.

When speaking of the sun and moon Enoch said:

Enoch 77 :3
These are the two great luminaries, whose orbs are as the orbs of heaven; and the dimension of both are equal.

*Whose Circles are as the circles of heaven*

Not only is enoch describing the sun and moon as circles (disks), he is also comparing them to the circle of heaven.

Meaning—the sky being circular and orbiting.

And their equal dimensions a reminder of their equal significance of the Whole of the 7 portions.

Luminaire etymology comes from “electric lighting unit.”

Both the Sun and Moon create a relational Torus field through their dance together everyday. Electromagnetism.

Sun&Moon relationship Videos here.