Each consisted of a pair of black dots surrounded by a pattern of ten radiating lines.
The centered polygonal numbers are a class of series of figurate numbers, each formed by a central dot, surrounded by polygonal layers with a constant number of sides.
They don't realize the little dots surrounded by black are U.F.O.'s.
The herd, and themselves, were like a dot, surrounded by endless grass.
The sun was low in the northern sky, a bright dot surrounded by pewter.
The picture showed a tiny dot surrounded by a honeycomb pattern of speckles, caused by slight imperfections in the optics.
After a few days it is replaced by a reddish dot often surrounded by pigment.
Below, the gray wreck of the Nicholai Romanan became a dot surrounded by the dingy hide-covered huts of the Spider settlement.
In Diaethria, the pattern consists of black dots surrounded by concentric white and black lines, and typically looks like the numbers "88" or "89".
As the Vulcan spoke, a glowing dot surrounded by a flickering set of numbers appeared near the right edge of the projection.