yes the imaginary line is the equator and it circles the globeat its widest point.
the Equator
The imaginary line that circles the middle of the earth is called the equator.
The longest line of latitude is the equator (0°).
Parallels are imaginary circles around the globe that measure latitude, which is the distance north or south of the equator. They help in locating positions on the Earth's surface and are often used as reference points in navigation and mapping.
The Equator.
The imaginary line dividing the northern portion of the globe from the southern is called the Equator. It is located at 0 degrees latitude and circles the Earth horizontally.
Houses in general look the same all over the world, though in many tropical countries people live in shacks. Air conditioning and no chimneys/fireplaces are commonly found in houses near the equator.
The Tropic of Cancer is an imaginary line that circles the entire globe 23.5 degrees north of the equator. Being so large it is seldom lost.
The Equator.
Equator
There are many things which completely circle the globe. The first thing that comes to mind is the equator, but the artic and Antarctic circles also circle the globe (as well as every other degree of latitude). The taiga forest circles the globe. The atmosphere circles the globe.
The Equator is slightly bigger then any of the other imaginary lines.